خلف
خلف 30秒了解
- Means 'behind'
- Spatial preposition
- Takes genitive case
- Opposite of 'in front'
The Arabic word خلف (pronounced 'khalfa') is a fundamental spatial preposition that translates directly to 'behind' or 'at the back of' in English. It is an essential vocabulary word for beginners at the CEFR A1 level, as it allows learners to describe the physical location of objects, people, and places in relation to one another. In Arabic grammar, it is classified as a 'Zarf Makan' (ظرف مكان), which means an adverb of place. When you use this word, you are establishing a spatial relationship where one entity is positioned at the rear of another. Understanding how to use this word is crucial for giving directions, describing scenes, and navigating everyday conversations in any Arabic-speaking environment. The concept of space and location is universal, but the grammatical rules governing how these prepositions interact with other words in Arabic are unique and require careful attention.
- Grammatical Function
- As an adverb of place, it typically triggers the genitive case (Majrur) for the noun that immediately follows it, creating an Idafa (possessive) construction.
القطة خلف الباب.
People use this word constantly in daily life. Imagine you are looking for your keys; someone might tell you they are behind the book. If you are driving and need to explain where a car is, you will use this word. It is not limited to physical objects either. Just like in English, it can be used metaphorically to describe support or hidden motives, such as saying someone is 'behind' a project or decision. However, at the beginner level, the focus remains strictly on physical placement. The word is deeply rooted in the Arabic language, deriving from the triconsonantal root خ-ل-ف (kha-laam-faa), which carries meanings related to following, coming after, succeeding, or being at the rear. This root is incredibly productive, giving us words like 'Khalifa' (Caliph/successor) and 'Ikhtilaf' (difference/disagreement). By learning this simple preposition, you are actually unlocking a gateway to a much larger web of Arabic vocabulary.
- Metaphorical Usage
- Beyond physical space, it can indicate support, as in standing behind someone's decision, or causation, as in the reason behind an event.
أنا أقف خلفك في هذا القرار.
When speaking, you will notice that the final vowel on the word is usually a Fatha (a short 'a' sound), making it 'khalfa'. This is because adverbs of place in Arabic are typically in the accusative case (Mansub) when they are acting as prepositions indicating location. If you add a pronoun suffix to it, such as 'me' or 'you', the word absorbs the pronoun seamlessly. For example, 'khalfi' means behind me, 'khalfaka' means behind you (masculine), and 'khalfahu' means behind him. This ability to attach pronouns directly to the preposition makes Arabic sentences highly efficient and concise compared to English. You do not need a separate word for the pronoun; it becomes one unified phonetic block. This is a crucial concept for beginners to grasp early on, as it applies to almost all prepositions in the language.
- Pronoun Attachment
- Attaching suffixes like ـه (hu), ـها (ha), ـك (ka/ki), and ـي (i) transforms the preposition into a complete locational phrase.
الرجل يمشي خلفي.
Furthermore, it is important to distinguish this word from its synonyms, most notably 'waraa' (وراء). While both words mean 'behind' and are often used interchangeably in modern spoken Arabic, 'khalfa' sometimes carries a slightly more formal or precise connotation in written texts. In classical Arabic, subtle distinctions exist regarding whether the object behind is visible or obscured, but for a modern learner, knowing that both mean 'behind' is sufficient. You will encounter 'khalfa' in news broadcasts, literature, formal speeches, and everyday conversations alike. It is a versatile, high-frequency word that forms the backbone of spatial description. Mastering it early will significantly boost your ability to comprehend and construct meaningful sentences, allowing you to interact with the physical world in Arabic with confidence and accuracy.
الحديقة تقع خلف المنزل.
لا تترك أحداً خلفك.
Constructing sentences with the word خلف requires an understanding of basic Arabic sentence structure, specifically the nominal sentence (Jumla Ismiyya) and the verbal sentence (Jumla Fi'liyya). In a nominal sentence, which starts with a noun, the prepositional phrase often acts as the predicate (Khabar) providing information about the subject (Mubtada). For instance, if you want to say 'The car is behind the tree', you start with the subject 'Al-sayyaratu' (The car), followed by the preposition 'khalfa' (behind), and finally the object 'al-shajarati' (the tree). Notice that the word for tree ends in a Kasra (an 'i' sound). This is a fundamental rule: the noun following this spatial adverb must be in the genitive case (Majrur), meaning it takes a Kasra if it is definite, or Kasratayn (double Kasra) if it is indefinite. This grammatical relationship is known as Idafa, or the construct state, where the preposition acts as the first part (Mudaf) and the following noun is the second part (Mudaf Ilayh).
- Nominal Sentences
- In nominal sentences, the phrase acts as the predicate. The subject comes first, followed by the preposition and its object.
المدرسة خلف المسجد.
In verbal sentences, which begin with a verb, the prepositional phrase functions to describe where the action is taking place. For example, 'Jalasa al-waladu khalfa al-tawilati' translates to 'The boy sat behind the table'. Here, the verb 'jalasa' (sat) initiates the sentence, followed by the subject 'al-waladu' (the boy), and then the prepositional phrase 'khalfa al-tawilati' (behind the table) details the location of the sitting. The rule of the genitive case applies exactly the same way here. The noun 'al-tawilati' must end in a Kasra. This consistency makes Arabic grammar highly logical once you grasp the core patterns. Furthermore, you can invert the order for emphasis. Saying 'Khalfa al-bayti hadiqa' (Behind the house is a garden) places the focus on the location rather than the garden itself. This structure is very common when introducing the existence of something in a specific place.
- Verbal Sentences
- When used with verbs, the phrase modifies the action, indicating exactly where the event occurred.
اختبأ الطفل خلف الشجرة.
Another critical aspect of using this word is combining it with attached pronouns (Dama'ir Muttasila). Instead of saying 'behind the man', you might want to say 'behind him'. In Arabic, you do not use a separate word for 'him'. Instead, you attach the suffix 'ـه' (hu) directly to the preposition, creating 'khalfahu'. The paradigm is straightforward: khalfi (behind me), khalfana (behind us), khalfaka (behind you, masc.), khalfaki (behind you, fem.), khalfakum (behind you all, masc.), khalfahunna (behind you all, fem.), khalfahu (behind him), khalfaha (behind her), and khalfahum (behind them). Memorizing these combinations is vital because they appear incessantly in both spoken and written Arabic. When attaching these pronouns, the final Fatha on the word 'khalfa' is maintained, except for 'khalfi' (behind me), where the Fatha changes to a Kasra to harmonize with the 'ee' sound of the pronoun 'ya'.
- Emphasis and Inversion
- Starting a sentence with the prepositional phrase emphasizes the location over the subject itself.
خلف الجبل توجد قرية صغيرة.
Finally, it is worth noting how this word interacts with other prepositions. Sometimes, you will see it preceded by the preposition 'min' (from), creating the phrase 'min khalfi' (from behind). For example, 'Hajama min khalfi al-jidaari' means 'He attacked from behind the wall'. When 'min' precedes it, the word 'khalfa' changes its case ending from a Fatha to a Kasra, becoming 'khalfi', because 'min' is a true preposition (Harf Jarr) that forces the following word into the genitive case. This stacking of prepositions allows for highly specific descriptions of movement and location. By mastering these sentence structures—nominal, verbal, pronoun attachments, and preposition stacking—you will be able to use this vocabulary word with native-like fluency and precision in a wide variety of contexts.
جاء الصوت من خلف الباب.
سأكون خلفك دائماً.
The word خلف is ubiquitous in the Arabic-speaking world, permeating every level of communication from the most casual street conversations to highly formal news broadcasts. One of the most common places you will hear it is when asking for or giving directions. If you are navigating a bustling souq in Cairo or looking for a specific office in Dubai, locals will frequently use this word to orient you. You might hear phrases like 'The pharmacy is behind the hospital' or 'Park your car behind the building'. In these everyday scenarios, the word is indispensable for establishing spatial landmarks. It is also heavily used in public transportation announcements, GPS navigation systems, and maps. When a GPS instructs you in Arabic, it will often use precise spatial adverbs, making this word a crucial part of your functional vocabulary for traveling and moving around independently.
- Giving Directions
- It is heavily relied upon to describe the location of buildings, streets, and landmarks relative to one another.
المطعم يقع خلف البنك.
Beyond navigation, you will hear this word constantly in the context of sports and physical activities. In football (soccer), which is massively popular across the Arab world, commentators use it to describe the positioning of players. A defender might be described as playing 'behind' the midfield, or a pass might be sent 'behind' the defensive line. In everyday physical contexts, such as arranging furniture in a room or organizing a classroom, teachers and parents use it to instruct children. 'Put your bag behind your chair' or 'Stand behind the line' are standard instructions. Children themselves use it frequently during play, especially in games like hide-and-seek, where hiding 'behind' a tree or a door is the main objective. This makes it one of the earliest spatial concepts acquired by native speakers and learners alike.
- Sports Commentary
- Commentators use it to describe tactical formations and the movement of players on the field.
اللاعب يركض خلف المدافعين.
In more formal or abstract contexts, such as news media, politics, and business, the word takes on metaphorical meanings that you will hear daily. Journalists often investigate 'who is behind' a particular event, crime, or political movement. In this sense, it implies causation, backing, or hidden influence. You might read a headline asking 'What is the secret behind this decision?' Similarly, in business, a company might state that they stand 'behind' their product, indicating a guarantee or support. This figurative usage mirrors English perfectly, making it highly intuitive for English speakers to grasp. When you watch Arabic news channels like Al Jazeera or Al Arabiya, pay attention to how often reporters use this word to describe the underlying forces driving a story, not just physical locations.
- News and Media
- Used metaphorically to discuss the hidden reasons, motives, or supporters of a particular event or policy.
من يقف خلف هذا الهجوم؟
Finally, you will encounter this word in literature, poetry, and religious texts. The Quran uses variations of this root extensively to discuss what is to come, what is left behind, and the concept of succession. In modern literature, authors use it to create atmosphere and describe settings in vivid detail. Whether it is a detective novel describing a shadowy figure 'behind' the curtains or a romantic poem talking about leaving the past 'behind', the word is deeply woven into the artistic expression of the language. Because it spans from the most mundane physical descriptions to profound abstract concepts, it is a word you will truly hear everywhere, making it one of the most high-yield vocabulary items you can learn.
تركنا الماضي خلفنا.
الشمس تغيب خلف التلال.
When learning the word خلف, English speakers often encounter a few specific grammatical and conceptual hurdles. The most frequent mistake involves the case ending of the noun that follows the preposition. In Arabic, adverbs of place act like the first part of a possessive construction (Idafa). Therefore, the noun that comes after it must be in the genitive case (Majrur), which usually means it ends with a Kasra (an 'i' sound). Many beginners forget this rule and leave the noun in the nominative case (ending in Damma/u) or accusative case (ending in Fatha/a). For example, saying 'khalfa al-baytu' instead of the correct 'khalfa al-bayti' (behind the house). While native speakers will still understand you, this grammatical error is highly noticeable and marks you as a beginner. Training yourself to automatically apply the Kasra after spatial prepositions is a crucial step toward fluency.
- Case Endings Error
- Failing to put the subsequent noun in the genitive case (Majrur) is the most common grammatical mistake made by learners.
الكلب خلف الجدارِ.
Another common mistake is confusing it with words that indicate time rather than space. In English, we sometimes use spatial words for time, like saying an event is 'behind us' to mean it is in the past. While Arabic does have metaphorical uses, learners sometimes mistakenly use 'khalfa' when they should use 'ba'da' (after) for chronological sequences. For instance, if you want to say 'I will see you after the meeting', you must use 'ba'da al-ijtimaa'. If you say 'khalfa al-ijtimaa', it sounds like you are physically hiding behind the meeting room. Maintaining a clear distinction between spatial prepositions (like khalfa) and temporal prepositions (like ba'da) is essential to avoid confusing your listeners. Although the root خ-ل-ف can relate to time in other derivative forms (like 'khilafa' meaning succession), the preposition itself is primarily spatial.
- Time vs. Space Confusion
- Using a spatial preposition when a temporal one (like 'after') is required leads to nonsensical sentences.
سأصل بعد الظهر. (Not خلف)
Learners also struggle with pronoun attachments. In English, we use separate words: 'behind' and 'him'. In Arabic, they merge into 'khalfahu'. A frequent mistake is trying to use independent pronouns after the preposition, such as saying 'khalfa huwa' instead of 'khalfahu'. This is grammatically incorrect in Arabic. Prepositions must take attached pronouns (Dama'ir Muttasila). Furthermore, when attaching the pronoun for 'me' (ي), learners often forget to change the final vowel of the preposition. It should be 'khalfi' (with a Kasra), not 'khalfay' or 'khalfa-i'. The Kasra is necessary to blend smoothly with the 'ya' suffix. Practicing the full paradigm of attached pronouns with this preposition is the only way to overcome this habit, as the English brain naturally wants to separate the preposition from the pronoun.
- Pronoun Attachment Errors
- Failing to merge the pronoun into the preposition as a suffix is a direct translation error from English.
الكتاب خلفها.
Lastly, a subtle mistake involves pronunciation, specifically the stress and vowel length. The word is short and sharp: 'khal-fa'. Sometimes learners elongate the first vowel, making it sound like 'khaalfa', which alters the root pattern and can sound like an active participle (meaning 'violating' or 'disagreeing'). Arabic is a language where vowel length is phonemic; changing a short vowel to a long vowel changes the word entirely. Ensuring that both the 'a' in 'kha' and the 'a' in 'fa' are short is vital for clear communication. By being aware of these common pitfalls—case endings, time vs. space, pronoun attachments, and vowel length—you can refine your usage of this essential word and sound much more natural when speaking Arabic.
السيارة خلف المبنى.
انظر خلفك!
When expanding your Arabic vocabulary around spatial relationships, you will quickly discover that خلف is not the only word used to convey the concept of being 'behind'. The most prominent synonym, and one that is arguably used even more frequently in everyday spoken dialects, is 'waraa' (وراء). In Modern Standard Arabic (MSA), both words are highly common and generally interchangeable when describing physical location. For instance, saying 'khalfa al-bayti' and 'waraa'a al-bayti' both translate perfectly to 'behind the house'. However, subtle nuances exist. Historically and in classical texts, 'khalfa' sometimes implies a more immediate or direct position behind something, whereas 'waraa' can imply a broader sense of being beyond or hidden from sight. For a beginner, treating them as exact synonyms is perfectly acceptable, but knowing both is essential because you will encounter them equally in reading and listening.
- The Primary Synonym
- 'Waraa' (وراء) is the most direct alternative and is used extensively in both formal Arabic and regional dialects.
الحديقة وراء المنزل.
It is also helpful to understand the direct antonyms to build a complete spatial map in your mind. The opposite of 'behind' is 'in front of', which in Arabic is 'amaama' (أمام). Just like our primary word, 'amaama' is an adverb of place that forces the following noun into the genitive case (Idafa). Another common word for 'in front of', especially in spoken dialects, is 'quddama' (قدام). By learning these pairs together (khalfa/amaama and waraa'/quddama), you create mental associations that make vocabulary retention much stronger. If you are practicing directions, try describing a scene by stating what is in front of an object and what is behind it. This dual practice reinforces the grammatical rules, such as case endings and pronoun attachments, which apply equally to all these spatial prepositions.
- The Direct Antonym
- 'Amaama' (أمام) means 'in front of' and follows the exact same grammatical rules as spatial adverbs.
السيارة أمام الباب.
Another related concept is the noun form. While 'khalfa' is a preposition, the word 'khalf' (without the final 'a' vowel) can act as a noun meaning 'the back' or 'the rear'. For example, 'fi al-khalf' means 'in the back'. This is similar to English, where we can say 'behind the car' (preposition) or 'in the back of the car' (noun phrase). Additionally, the root generates words like 'khalfiyya', which means 'background' (both literally, like a computer wallpaper, and figuratively, like a person's educational background). Understanding how the root morphs into different parts of speech helps you decode new words you encounter. When you see the letters خ-ل-ف together, you can confidently guess that the word has something to do with being behind, coming after, or forming a background.
- Related Nouns
- The root provides nouns like 'khalfiyya' (background), expanding your ability to describe abstract concepts.
ما هي خلفيتك التعليمية؟
In summary, while 'khalfa' is your primary tool for saying 'behind', integrating 'waraa'' into your vocabulary will make your Arabic sound more varied and natural. Contrasting these with 'amaama' ensures you can navigate space effectively. By recognizing the root connections to words like 'khalfiyya', you transition from merely memorizing isolated words to understanding the architectural logic of the Arabic language. This holistic approach to vocabulary acquisition is what separates rote memorization from true linguistic comprehension, allowing you to express complex spatial and abstract ideas with ease and precision.
اجلس في الخلف.
هناك سر وراء هذا الباب.
How Formal Is It?
趣味小知识
The English word 'Caliph' comes directly from the Arabic word 'Khalifa', which is derived from this exact same root (خ-ل-ف). A Caliph is literally someone who 'comes behind' or 'succeeds' the Prophet Muhammad in leadership.
发音指南
- Pronouncing 'kh' as a hard 'k' (kalfa).
- Elongating the first vowel to make it sound like 'khaalfa'.
- Forgetting the final short 'a' and just saying 'khalf' when it is acting as a preposition.
- Mispronouncing the 'l' as a dark 'l' (like in English 'ball') instead of a clear, light Arabic 'l'.
难度评级
Very easy to read. Only three letters, no complex hamzas or weak letters.
Extremely simple to write. The letters connect smoothly (خـلـف).
The 'kh' sound (خ) can be slightly challenging for English speakers to produce clearly without sounding like a 'k'.
Highly distinct sound. The harsh 'kh' followed by 'l' and 'f' makes it easy to pick out in a sentence.
接下来学什么
前置知识
接下来学习
高级
需要掌握的语法
Idafa (Construct State)
خلف البيتِ (Khalfa al-bayti - Behind the house). The preposition is the Mudaf, the noun is the Mudaf Ilayh (Genitive/Kasra).
Attached Pronouns (Dama'ir Muttasila)
خلفه (Khalfahu - Behind him). Prepositions take attached pronouns, never independent ones like 'huwa'.
Preposition Stacking
من خلفِ الجدار (Min khalfi al-jidaar - From behind the wall). The first preposition 'min' forces 'khalfa' into the genitive case 'khalfi'.
Nominal Sentences (Jumla Ismiyya)
القطة خلف الباب (The cat is behind the door). The prepositional phrase acts as the predicate (Khabar).
Inverted Nominal Sentences
خلف الباب قطة (Behind the door is a cat). When the subject is indefinite, the prepositional phrase must come first.
按水平分级的例句
القطة خلف الباب.
The cat is behind the door.
'Al-baab' takes a Kasra (genitive case) because it follows the spatial preposition.
الكتاب خلف الحاسوب.
The book is behind the computer.
Basic nominal sentence structure using a spatial preposition as the predicate.
السيارة خلف الشجرة.
The car is behind the tree.
'Al-shajara' ends in a Kasra due to the Idafa construction.
أنا أقف خلفك.
I am standing behind you.
The pronoun 'ka' (you, masc.) is attached directly to the preposition.
المدرسة خلف المسجد.
The school is behind the mosque.
Used for giving simple directions and locating buildings.
الكلب ينام خلف الأريكة.
The dog is sleeping behind the sofa.
Used in a verbal sentence to describe where the action is happening.
الحقيبة خلف الكرسي.
The bag is behind the chair.
Everyday classroom vocabulary combined with spatial awareness.
هو يمشي خلفي.
He is walking behind me.
Note the change to Kasra on 'khalfi' to accommodate the 'ya' pronoun.
اختبأ الطفل خلف الستارة.
The child hid behind the curtain.
Using the preposition with a past tense verb (ikhtaba'a).
يوجد حديقة جميلة خلف منزلنا.
There is a beautiful garden behind our house.
Using 'yujad' (there is) with a prepositional phrase.
لا تنظر خلفك، استمر في المشي.
Don't look behind you, keep walking.
Using the preposition in a negative imperative sentence.
الرجل الذي يقف خلف الباب هو أخي.
The man who is standing behind the door is my brother.
Integrating the preposition into a relative clause (alladhi).
وضعت المفاتيح خلف التلفاز.
I put the keys behind the television.
First-person past tense verb followed by the spatial location.
الشمس تغيب خلف الجبال.
The sun is setting behind the mountains.
Describing natural phenomena and landscapes.
جاء الصوت من خلف الجدار.
The sound came from behind the wall.
Stacking prepositions: 'min' forces 'khalfa' to become 'khalfi'.
جلسنا في الصف الخلفي.
We sat in the back row.
Using the adjective form 'khalfiy' derived from the root.
من يقف خلف هذا المشروع الجديد؟
Who is standing behind this new project?
Metaphorical use meaning 'who is supporting or funding'.
هناك قصة حزينة خلف هذه الصورة.
There is a sad story behind this picture.
Using the preposition to indicate hidden context or history.
السبب خلف غيابه غير معروف.
The reason behind his absence is unknown.
Connecting the preposition with abstract nouns like 'reason' (sabab).
نحن ندعمك ونقف خلفك دائماً.
We support you and stand behind you always.
Figurative use indicating moral or physical support.
ترك عائلته خلفه وسافر للعمل.
He left his family behind him and traveled for work.
Using the concept of leaving something in the past or physically behind.
اكتشفت الحقيقة خلف أكاذيبه.
I discovered the truth behind his lies.
Abstract usage contrasting truth and deception.
ما هي خلفيتك التعليمية والمهنية؟
What is your educational and professional background?
Using the noun derivative 'khalfiyya' (background).
الجنود هجموا من خلف خطوط العدو.
The soldiers attacked from behind enemy lines.
Military and tactical context using stacked prepositions.
الدافع الحقيقي خلف الجريمة لا يزال غامضاً.
The true motive behind the crime remains mysterious.
Advanced vocabulary ('dafi'', 'ghamidh') paired with the preposition.
تعمل هذه المنظمة خلف الكواليس لحل الأزمة.
This organization works behind the scenes to resolve the crisis.
Idiomatic expression: 'khalfa al-kawalise' (behind the scenes).
يجب أن نترك خلافاتنا خلفنا ونمضي قدماً.
We must leave our differences behind us and move forward.
Metaphorical use regarding time and conflict resolution.
القوة الدافعة خلف هذا النجاح هي العمل الجاد.
The driving force behind this success is hard work.
Complex noun phrase 'al-quwwa al-dafi'a' (driving force).
هناك أهداف سياسية خفية خلف هذا القرار.
There are hidden political goals behind this decision.
Discussing underlying motives in a political context.
تتوارى خلف ابتسامتها قصة معاناة طويلة.
Behind her smile hides a long story of suffering.
Literary verb 'tatawara' (hides/conceals itself) with the preposition.
الاقتصاد هو المحرك الأساسي خلف هذه التغييرات.
The economy is the primary engine behind these changes.
Using mechanical metaphors with spatial prepositions.
تم اتخاذ القرار خلف أبواب مغلقة.
The decision was made behind closed doors.
Direct translation of the English idiom 'behind closed doors'.
الفلسفة الكامنة خلف هذه الحركة معقدة للغاية.
The philosophy underlying (behind) this movement is extremely complex.
Using 'al-kamina' (latent/underlying) to modify the prepositional concept.
لا يمكننا تجاهل التراث الثقافي الذي يقف خلف هذه التقاليد.
We cannot ignore the cultural heritage that stands behind these traditions.
Academic and sociological discourse.
الكاتب يختبئ خلف أسماء مستعارة لتمرير أفكاره.
The writer hides behind pseudonyms to pass his ideas.
Discussing literary techniques and anonymity.
هناك تخلّف اقتصادي يقبع خلف هذه الأرقام المضللة.
There is economic underdevelopment lurking behind these misleading figures.
Using the root derivative 'takhalluf' (underdevelopment) alongside the preposition.
التحليل النفسي يكشف الدوافع اللاشعورية خلف السلوك البشري.
Psychoanalysis reveals the unconscious motives behind human behavior.
Scientific and psychological terminology.
القرارات المصيرية غالباً ما تُتخذ خلف حجب من السرية.
Fateful decisions are often made behind veils of secrecy.
Literary phrasing using 'hujub' (veils).
الخلفية التاريخية للصراع تفسر الكثير من الأحداث الحالية.
The historical background of the conflict explains many current events.
Advanced use of the noun form 'khalfiyya' in an academic context.
ترك إرثاً فكرياً عظيماً خلفه للأجيال القادمة.
He left a great intellectual legacy behind him for future generations.
Discussing legacy and historical impact.
تتجلى عبقرية الشاعر في المعاني المبطنة خلف ظاهر الكلمات.
The poet's genius is manifested in the implicit meanings behind the literal words.
Literary criticism and deep textual analysis.
إن القوى الجيوسياسية التي تتصارع خلف كواليس هذا الإقليم تعيد رسم الخرائط.
The geopolitical forces clashing behind the scenes of this region are redrawing the maps.
High-level political and strategic analysis.
لا ينبغي أن نبحث عن كبش فداء خلف كل إخفاق مؤسسي.
We should not look for a scapegoat behind every institutional failure.
Complex idiomatic usage ('kabsh fida'' - scapegoat).
الرواية تفكك البنية الأبوية القابعة خلف الأعراف الاجتماعية الصارمة.
The novel deconstructs the patriarchal structure lurking behind strict social norms.
Sociological and literary deconstruction terminology.
في الفقه الإسلامي، هناك نقاش حول الحكمة التشريعية خلف بعض الأحكام.
In Islamic jurisprudence, there is debate about the legislative wisdom behind certain rulings.
Theological and legal (Fiqh) discourse.
الاستعارة المكنية خلف هذا البيت الشعري تفتح آفاقاً للتأويل.
The implicit metaphor behind this poetic verse opens horizons for interpretation.
Advanced rhetorical analysis (Balagha).
إن التخلف التكنولوجي يترك أمماً بأكملها خلف ركب الحضارة.
Technological backwardness leaves entire nations behind the caravan of civilization.
Poetic/journalistic metaphor ('rakb al-hadara' - caravan of civilization).
الوجودية تتساءل عن العدم الذي يتربص خلف كل وجود إنساني.
Existentialism questions the nothingness that lurks behind all human existence.
Deep philosophical and existential discourse.
常见搭配
常用短语
— Metaphysics or the supernatural. Literally 'what is behind nature'.
يقرأ كتباً عن ما خلف الطبيعة.
— Behind someone's back (doing something secretly or treacherously).
تحدثوا عنه من خلف ظهره.
— Behind the scenes. Used in theater and metaphorically in politics or business.
هناك الكثير يحدث خلف الكواليس.
— Leave no one behind. A common military or team-building phrase.
شعارنا هو: لا تترك أحداً خلفك.
容易混淆的词
Means 'disagreement' or 'dispute'. It shares the same root but has a long 'a' and a completely different meaning.
Means 'successor' or 'Caliph'. It is a noun, not a preposition, though it comes from the idea of coming 'behind' someone.
Means 'after'. Learners confuse them because English uses 'behind' for time sometimes. 'Khalfa' is for space, 'ba'da' is for time.
习语与表达
— A stab in the back. Betrayal by someone trusted.
كانت خيانته بمثابة طعنة من الخلف.
Neutral/Dramatic— Behind the scenes. Secretly organizing or controlling events.
المدير الحقيقي يعمل خلف الكواليس.
Neutral/Media— Behind closed doors. In absolute secrecy.
القرارات تتخذ خلف الأبواب المغلقة.
Formal/News— Behind his back. Doing something without someone's knowledge, usually negative.
لا تتحدث عن صديقك من خلف ظهره.
Informal/Neutral— Behind bars. Meaning incarcerated or in jail.
قضى عشر سنوات خلف القضبان.
Neutral/Journalistic— To throw behind one's back. Meaning to ignore, forget, or disregard completely.
رمى كل النصائح خلف ظهره.
Literary/Neutral— The unknown soldiers behind... Referring to the uncredited people who make a success possible.
هم الجنود المجهولون خلف هذا النجاح.
Formal/Appreciative— Behind the curtain. Similar to behind the scenes, indicating hidden truth.
الحقيقة دائماً تختبئ خلف الستار.
Literary— What is hidden is greater. Used when a small part of a problem reveals a much larger hidden issue.
هذه مجرد البداية، وما خفي خلف ذلك أعظم.
Proverbial— Beyond the seas. Meaning very far away, usually referring to foreign lands.
سافر إلى بلاد خلف البحار.
Literary/Poetic容易混淆
They both mean 'behind' and are used interchangeably.
'Waraa'' is slightly more common in spoken dialects, while 'khalfa' is slightly more common in formal writing, though both are used in all registers. Grammatically, they function identically.
البيت خلف/وراء المسجد. (The house is behind the mosque.)
English speakers use 'behind' to mean 'after' (e.g., 'we are behind schedule' or 'put the past behind us').
'Ba'da' is strictly for time (after 5 PM, after the meeting). 'Khalfa' is strictly for physical or metaphorical space. Never use 'khalfa' to mean 'later in time'.
سأراك بعد الاجتماع. (I will see you after the meeting. NOT خلف)
It is the exact same spelling but pronounced without the final 'a' vowel.
'Khalfa' (with 'a') is the preposition 'behind'. 'Khalf' (no vowel) is the noun 'the back/rear'. You use 'fi al-khalf' to say 'in the back'.
اجلس في الخلف. (Sit in the back.)
It is the direct opposite (in front of), and learners sometimes mix up directional pairs.
'Amaama' means 'in front of'. 'Khalfa' means 'behind'. Memorize them as a contrasting pair to avoid mixing them up under pressure.
السيارة أمام البيت، والحديقة خلفه. (The car is in front of the house, and the garden is behind it.)
Shares the exact same root letters.
'Takhalluf' is a noun meaning 'backwardness' or 'falling behind' (often used for economic underdevelopment). It is an advanced concept, not a simple preposition.
تعاني الدولة من التخلف الاقتصادي. (The country suffers from economic backwardness.)
句型
[Noun] + خلف + [Noun in Genitive]
الكتاب خلف الحاسوب. (The book is behind the computer.)
خلف + [Attached Pronoun]
أنا خلفك. (I am behind you.)
[Verb] + [Subject] + خلف + [Noun]
جلس الطالب خلف المكتب. (The student sat behind the desk.)
يوجد + [Noun] + خلف + [Noun]
يوجد حديقة خلف البيت. (There is a garden behind the house.)
من + [Verb] + خلف + [Abstract Noun]
من يقف خلف هذا القرار؟ (Who stands behind this decision?)
من خلف + [Noun]
ظهر من خلف الجبل. (He appeared from behind the mountain.)
ترك + [Noun] + خلف + [Pronoun]
ترك الماضي خلفه. (He left the past behind him.)
[Abstract Noun] + الكامن/ة + خلف + [Noun]
السبب الكامن خلف الأزمة. (The underlying reason behind the crisis.)
词族
名词
动词
形容词
相关
如何使用
Extremely High. It is one of the top 500 most used words in the Arabic language.
-
Saying 'خلف البيتُ' (khalfa al-baytu) with a Damma (u) at the end.
→
خلف البيتِ (khalfa al-bayti) with a Kasra (i) at the end.
The noun after an adverb of place must be in the genitive case (Majrur). This means it must end with a Kasra. Using a Damma or Fatha is a major grammatical error.
-
Saying 'سأصل خلف الاجتماع' (I will arrive behind the meeting) to mean 'after'.
→
سأصل بعد الاجتماع (I will arrive after the meeting).
English uses 'behind' for time in some idioms. Arabic strictly separates them. 'Khalfa' is for physical space. 'Ba'da' is for time.
-
Saying 'خلف هو' (khalfa huwa) to mean 'behind him'.
→
خلفه (khalfahu).
Arabic uses attached pronoun suffixes (Dama'ir Muttasila) with prepositions. You cannot use independent pronouns (huwa, hiya, ana) after a preposition.
-
Saying 'الخلف الباب' (al-khalfa al-baab).
→
خلف الباب (khalfa al-baab).
The preposition itself does not take the definite article 'Al' (the) when it is part of an Idafa construction. Only the second noun takes 'Al'.
-
Pronouncing it 'khaalfa' with a long 'a'.
→
Pronouncing it 'khalfa' with short, crisp vowels.
Elongating the first vowel changes the word's morphological pattern. 'Khaalafa' is a verb meaning 'he violated' or 'he disagreed'. Keep the vowels short.
小贴士
The Kasra Rule
Always put a Kasra (i) on the noun following 'khalfa'. Make it a habit. Khalfa al-baab(i), khalfa al-shajara(ti). This instantly makes your Arabic sound more educated.
Master the 'Kh' Sound
The 'خ' sound is like clearing your throat. Don't say 'kalfa' (with a k). Practice making the raspy sound. It is the same sound as 'Jalapeño' in Spanish or 'Bach' in German.
Learn in Pairs
Never learn 'khalfa' alone. Always practice it with its opposite, 'amaama' (in front of). If you say 'the cat is behind the door', immediately translate 'the cat is in front of the door'.
Space, Not Time
Remember that 'khalfa' is for space. Do not use it for time. If you want to say 'after', use 'ba'da' (بعد). Keep your spatial and temporal prepositions strictly separated.
Attach Pronouns Directly
Do not use separate words for pronouns. It is never 'khalfa huwa' (behind he). It is always 'khalfahu' (behind him). Memorize the attached pronoun suffixes; they are the key to fluency.
Listen for 'Wara'
When speaking to locals, you might hear 'wara' more often than 'khalfa'. Don't be confused; they mean the exact same thing. Be ready to understand both.
No 'Al' on Prepositions
Never write 'الخلف الباب' (al-khalfa al-baab). The preposition itself is indefinite in form. It is just 'خلف الباب' (khalfa al-baab).
Metaphorical Support
Use 'أنا خلفك' (Ana khalfaka - I am behind you) to encourage an Arabic-speaking friend. It is a natural and appreciated way to show support.
Preposition Stacking
To sound advanced, practice stacking prepositions. 'Min khalfi' (from behind). Notice how the vowel changes from 'a' to 'i'. 'Ja'a min khalfi al-mabna' (He came from behind the building).
Look for Kh-L-F
Whenever you see a new word with the letters خ-ل-ف, guess that it has something to do with 'behind', 'after', or 'differences'. This root-based guessing will explode your vocabulary.
记住它
记忆技巧
Imagine a CALF (sounds like khalf) hiding BEHIND its mother cow. The calf is 'khalfa' the cow.
视觉联想
Visualize the letter 'خ' (kha) with its dot on top as a person, and the rest of the word 'لف' as a wall. The person is hiding BEHIND the wall.
Word Web
挑战
Stand in the middle of your room. Point to an object behind you and say '[Object] khalfa [Me/You/The bed]'. Spin around and do it again. Repeat until you can name the location of 5 objects behind other objects without hesitating.
词源
The word originates from the Proto-Semitic root *ḫ-l-p, which generally means 'to pass by', 'to be substituted', or 'to come after'. In Arabic, the triconsonantal root is خ-ل-ف (kha-laam-faa).
原始含义: The original physical meaning relates to coming at the rear or following in the footsteps of someone else. It naturally evolved to mean the physical space 'behind' something.
Afroasiatic > Semitic > Central Semitic > Arabic.文化背景
When using the noun form 'khalf' (rear/backside), be cautious in informal contexts as it can sometimes be construed as referring to the human anatomy (buttocks), similar to English. Stick to the preposition 'khalfa' for locations.
English speakers use 'behind' for both space and time (e.g., 'that is behind us now'). Arabic does this too, but uses specific idioms. Do not translate 'behind schedule' literally; Arabic uses 'muta'akhkhir' (late).
在生活中练习
真实语境
Giving Directions
- خلف المبنى (Behind the building)
- الشارع الخلفي (The back street)
- امش خلف... (Walk behind...)
- يقع خلف (It is located behind)
Classroom/School
- خلف المكتب (Behind the desk)
- اجلس في الخلف (Sit in the back)
- خلف السبورة (Behind the board)
- اللوحة خلفك (The painting is behind you)
Sports
- خلف المدافعين (Behind the defenders)
- تمريرة خلفية (A back pass)
- الركض خلف (Running behind)
- خلف الخط (Behind the line)
News/Politics
- خلف الكواليس (Behind the scenes)
- السبب خلف (The reason behind)
- خلف الأبواب المغلقة (Behind closed doors)
- القوة خلف (The power behind)
Hide and Seek (Children)
- أنا أختبئ خلف... (I am hiding behind...)
- انظر خلف الباب (Look behind the door)
- هو خلف الشجرة (He is behind the tree)
- لا تنظر خلفك (Don't look behind you)
对话开场白
"هل تعرف ماذا يوجد خلف هذا الباب المغلق؟ (Do you know what is behind this closed door?)"
"من برأيك يقف خلف هذا القرار المفاجئ؟ (Who do you think stands behind this sudden decision?)"
"هل تفضل الجلوس في الأمام أم في الخلف؟ (Do you prefer sitting in the front or in the back?)"
"ما هي القصة خلف هذه الصورة القديمة؟ (What is the story behind this old picture?)"
"لماذا دائماً تترك أشيائك خلفك؟ (Why do you always leave your things behind?)"
日记主题
اكتب عن شيء تركته خلفك في الماضي ولا تندم عليه. (Write about something you left behind in the past and do not regret.)
صف الحديقة أو المنظر الذي يقع خلف منزلك. (Describe the garden or the view that is located behind your house.)
من هو الشخص الذي يقف دائماً خلفك ويدعمك؟ (Who is the person that always stands behind you and supports you?)
تخيل أنك وجدت باباً سرياً خلف خزانة ملابسك. ماذا يوجد هناك؟ (Imagine you found a secret door behind your wardrobe. What is there?)
ما هي الدوافع الحقيقية خلف أهدافك لهذا العام؟ (What are the true motives behind your goals for this year?)
常见问题
10 个问题In formal Arabic (MSA) and when reading texts, yes, you should pronounce the 'a' because it indicates the accusative case of the adverb. However, in casual spoken Arabic, people often drop the final vowel and just say 'khalf'. Both will be perfectly understood.
This is a fundamental rule of Arabic grammar called Idafa (possession/construct state). Adverbs of place act like the first part of a possessive phrase. The noun that follows is the 'possessor' of the location, so it must be in the genitive case (Majrur), which is marked by a Kasra ('i' sound).
No. This is a direct translation error from English. In Arabic, you use the word for 'late' (متاخر - muta'akhkhir). You would say 'Ana muta'akhkhir' (I am late). 'Khalfa' is for physical space or metaphorical support, not time delays.
For a beginner, there is no practical difference. Both mean 'behind'. 'Waraa' is often preferred in local dialects (like Egyptian or Levantine), while 'khalfa' is very common in news and literature. Learn both, as you will hear both constantly.
You attach the pronoun suffix for 'me' (ي - ya) directly to the word. It becomes 'خلفي' (khalfi). Notice that the 'a' sound changes to an 'i' sound to make it easier to pronounce with the 'ya'.
When used as a preposition meaning 'behind', it never takes 'Al'. You cannot say 'Al-khalfa'. However, if you are using the noun form 'khalf' meaning 'the rear', you can say 'Al-khalf' (e.g., fi al-khalf - in the rear).
Yes, extensively. The root خ-ل-ف appears hundreds of times in various forms. The preposition itself is used to describe what is behind people, both physically and in terms of what they leave behind after death.
You add the preposition 'min' (من) before it. It becomes 'min khalfi' (من خلفِ). Because 'min' is a strong preposition, it changes the ending of 'khalfa' to a Kasra ('i').
Yes! Just like in English, saying 'Ana aqifu khalfaka' (I stand behind you) is a common metaphor for showing support or backing someone's decision.
Prepositions do not have plurals in Arabic. The word remains 'khalfa' whether you are talking about one thing behind a house, or a hundred things behind a house.
自我测试 200 个问题
Translate into Arabic: 'The cat is behind the door.'
Well written! Good try! Check the sample answer below.
Al-qitta (the cat) khalfa (behind) al-baab (the door).
Al-qitta (the cat) khalfa (behind) al-baab (the door).
Translate into Arabic: 'Behind me.'
Well written! Good try! Check the sample answer below.
Attach the 'ya' pronoun to khalfa.
Attach the 'ya' pronoun to khalfa.
Translate into Arabic: 'The car is behind the tree.'
Well written! Good try! Check the sample answer below.
Al-sayyara (the car) khalfa (behind) al-shajara (the tree).
Al-sayyara (the car) khalfa (behind) al-shajara (the tree).
Translate into Arabic: 'He hid behind the wall.'
Well written! Good try! Check the sample answer below.
Ikhtaba'a (he hid) khalfa (behind) al-jidaar (the wall).
Ikhtaba'a (he hid) khalfa (behind) al-jidaar (the wall).
Translate into Arabic: 'Don't look behind you.' (to a male)
Well written! Good try! Check the sample answer below.
La tanzur (don't look) khalfaka (behind you).
La tanzur (don't look) khalfaka (behind you).
Translate into Arabic: 'Who is behind this project?'
Well written! Good try! Check the sample answer below.
Man yaqifu (who stands) khalfa (behind) hadha al-mashru' (this project).
Man yaqifu (who stands) khalfa (behind) hadha al-mashru' (this project).
Translate into Arabic: 'I stand behind you.' (support)
Well written! Good try! Check the sample answer below.
Ana aqifu (I stand) khalfaka (behind you).
Ana aqifu (I stand) khalfaka (behind you).
Translate into Arabic: 'The motive behind the crime.'
Well written! Good try! Check the sample answer below.
Al-dafi' (the motive) khalfa (behind) al-jarima (the crime).
Al-dafi' (the motive) khalfa (behind) al-jarima (the crime).
Translate into Arabic: 'Behind closed doors.'
Well written! Good try! Check the sample answer below.
Khalfa (behind) al-abwaab (the doors) al-mughlaqa (closed).
Khalfa (behind) al-abwaab (the doors) al-mughlaqa (closed).
Translate into Arabic: 'The historical background.'
Well written! Good try! Check the sample answer below.
Using the noun derivative 'khalfiyya'.
Using the noun derivative 'khalfiyya'.
Write the Arabic word for 'behind'.
Well written! Good try! Check the sample answer below.
Khalfa.
Khalfa.
Translate: 'The book is behind the computer.'
Well written! Good try! Check the sample answer below.
Al-kitab khalfa al-hasub.
Al-kitab khalfa al-hasub.
Translate: 'There is a garden behind the house.'
Well written! Good try! Check the sample answer below.
Yujad hadiqa khalfa al-manzil.
Yujad hadiqa khalfa al-manzil.
Translate: 'From behind.'
Well written! Good try! Check the sample answer below.
Min khalfa/khalfi.
Min khalfa/khalfi.
Translate: 'Behind the scenes.'
Well written! Good try! Check the sample answer below.
Khalfa al-kawalise.
Khalfa al-kawalise.
Translate: 'He left the past behind him.'
Well written! Good try! Check the sample answer below.
Taraka al-madi khalfahu.
Taraka al-madi khalfahu.
Translate: 'The driving force behind success.'
Well written! Good try! Check the sample answer below.
Al-quwwa al-dafi'a khalfa al-najah.
Al-quwwa al-dafi'a khalfa al-najah.
Translate: 'Behind bars.'
Well written! Good try! Check the sample answer below.
Khalfa al-qudban.
Khalfa al-qudban.
Translate: 'The underlying reason behind the crisis.'
Well written! Good try! Check the sample answer below.
Al-sabab al-kamin khalfa al-azma.
Al-sabab al-kamin khalfa al-azma.
Translate: 'He left a great legacy behind him.'
Well written! Good try! Check the sample answer below.
Taraka irthan 'aziman khalfahu.
Taraka irthan 'aziman khalfahu.
Say 'The cat is behind the door' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Focus on the 'kh' sound in khalfa.
Say 'Behind me' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Attach the 'i' sound for 'me'.
Say 'Behind you' (to a male) in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Attach the 'ka' sound for 'you'.
Say 'The garden is behind the house' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Ensure the final noun has a Kasra (al-manzili) if speaking formally.
Say 'Don't look behind you' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Practice the negative command.
Say 'Who is behind this project?' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Practice metaphorical usage.
Say 'Behind the scenes' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
A very common idiom to memorize.
Say 'The motive behind the crime' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Practice advanced vocabulary with the preposition.
Say 'Behind closed doors' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Another common idiom.
Say 'The historical background' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Practice the noun derivative.
Say 'The car is behind the tree' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Basic spatial description.
Say 'Behind him' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Attach the 'hu' pronoun.
Say 'He hid behind the wall' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Practice verbs of motion/location.
Say 'From behind' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Practice preposition stacking.
Say 'I stand behind you (support)' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Practice metaphorical support.
Say 'He left the past behind him' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Practice abstract time concepts.
Say 'The driving force behind success' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Complex noun phrase.
Say 'Behind bars' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Legal/News idiom.
Say 'The underlying reason behind the crisis' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Advanced academic phrasing.
Say 'He left a great legacy behind him' in Arabic.
Read this aloud:
你说的:
Speech recognition is not supported in your browser. Try Chrome or Edge.
Literary phrasing.
Listen to the audio: 'القطة خلف الباب'. What does it mean?
Khalfa means behind.
Listen: 'خلفي'. What does this mean?
The 'i' ending means 'me'.
Listen: 'الحديقة خلف المنزل'. Where is the garden?
Khalfa al-manzil = behind the house.
Listen: 'لا تنظر خلفك'. What is the instruction?
Negative command with khalfaka.
Listen: 'يعمل خلف الكواليس'. Where does he work?
Idiom: khalfa al-kawalise.
Listen: 'من يقف خلف هذا المشروع؟'. What is being asked?
Metaphorical question about support.
Listen: 'الدافع خلف الجريمة'. What is the topic?
Dafi' = motive, khalfa = behind.
Listen: 'خلف الأبواب المغلقة'. How did it happen?
Idiom for secrecy.
Listen: 'الخلفية التاريخية'. What is being discussed?
Khalfiyya = background.
Listen: 'ترك إرثاً خلفه'. What did he do?
Irthan = legacy, khalfahu = behind him.
Listen: 'السيارة خلف الشجرة'. Where is the car?
Khalfa al-shajara.
Listen: 'خلفه'. What does this mean?
The 'hu' ending means 'him'.
Listen: 'اختبأ خلف الجدار'. What did he do?
Ikhtaba'a = hid.
Listen: 'ترك الماضي خلفه'. What did he do?
Metaphor for moving on.
Listen: 'خلف القضبان'. Where is he?
Idiom for prison.
/ 200 correct
Perfect score!
Summary
The word 'خلف' (khalfa) means 'behind' and is essential for describing locations. Always remember that the noun following it must end with a Kasra (i sound). Example: خلف البابِ (khalfa al-baabi - behind the door).
- Means 'behind'
- Spatial preposition
- Takes genitive case
- Opposite of 'in front'
The Kasra Rule
Always put a Kasra (i) on the noun following 'khalfa'. Make it a habit. Khalfa al-baab(i), khalfa al-shajara(ti). This instantly makes your Arabic sound more educated.
Master the 'Kh' Sound
The 'خ' sound is like clearing your throat. Don't say 'kalfa' (with a k). Practice making the raspy sound. It is the same sound as 'Jalapeño' in Spanish or 'Bach' in German.
Learn in Pairs
Never learn 'khalfa' alone. Always practice it with its opposite, 'amaama' (in front of). If you say 'the cat is behind the door', immediately translate 'the cat is in front of the door'.
Space, Not Time
Remember that 'khalfa' is for space. Do not use it for time. If you want to say 'after', use 'ba'da' (بعد). Keep your spatial and temporal prepositions strictly separated.
例句
اختبأ خلف الستارة.