Grammar Rule in 30 Seconds
In Arabic, use the suffix -ān or -ayn to turn any singular noun into exactly two items.
- Add -ān to the end of a singular noun for the nominative case (e.g., waladān - two boys).
- Add -ayn to the end of a singular noun for accusative/genitive cases (e.g., waladayn - two boys).
- Always remove the final 'tā' marbūṭa (ة) before adding the dual suffix (e.g., bintān).
Overview
- 1主格：当名词作为主语或谓语时，使用
-ān(ـَان)。 - 2宾格/属格：当名词作为动词的宾语，或位于介词之后，或作为属格结构中的被限定词时，使用
-ayn(ـَيْن)。
طالبان (两个学生，主格) 时，你知道他们是动作的执行者；当你看到 طالبين (两个学生，宾格/属格) 时，你知道他们是动作的承受者或受介词支配。这种“词尾变化”在中文里完全不存在，因此初学者需要特别注意：不要试图在阿拉伯语中寻找“量词”，因为双数后缀本身就包含了“两”的意思。ـَان，宾格和属格用 ـَيْن。如果名词本身以阴性符号 ة (Tāʾ Marbūṭah) 结尾，你需要先把它变回 ت，然后再接后缀。طالب 学生) | 示例 (词根: سيارة 汽车) |ـَان | طالبان | سيارتان |ـَيْن | طالبين | سيارتين |ـَيْن | طالبين | سيارتين |- 1描述确切数量：当你提到“两只眼睛”、“两只手”、“两个朋友”时，必须使用双数。例如：
رأيتُ صديقين(我看见了两个朋友)。 - 2语法一致性：如果名词是双数，那么形容词也必须变成双数。例如：“两个聪明的学生”，不仅名词
طالب要变，形容词ذكي也要变，写成طالبان ذكيان。 - 3避免冗余：切记，不要在双数名词前加数字“二”（
اثنان）。这在阿拉伯语中是语病，就像在中文里说“两个两本书”一样奇怪。
- 1词尾混淆：很多中文母语者容易在主格和宾格之间犯错。原因在于中文没有格位变化，我们习惯了用语序来区分主宾。记住：主格是“ān”，宾格是“ayn”。
- 2忘记
ة的转换：这是最常见的错误。很多初学者直接在ة后面加后缀。请记住，ة必须先“打开”变成ت，然后再加后缀。这是因为ة在词尾时无法直接连接其他字母。 - 3重复表达：受中文习惯影响，很多同学会习惯性地在名词前加上“二”这个数字。请务必记住，双数后缀
ـَان或ـَيْن已经包含了“二”的含义，不需要再加数字。
طالب |ـَان / ـَيْن | طالبان |طلاب |- 1问：如果我不知道这个词是主格还是宾格怎么办？
ـَيْن。- 1问：所有的名词都可以变双数吗？
- 1问：为什么
ة要变成ت？
ة 是一个特殊的符号，它在词尾时表示停顿，如果要连接后缀，它必须恢复成原本的 ت 发音。Dual Noun Formation
| Singular | Nominative (-ān) | Accusative/Genitive (-ayn) |
|---|---|---|
|
كِتَاب (Book)
|
كِتَابَانِ
|
كِتَابَيْنِ
|
|
بِنْت (Girl)
|
بِنْتَانِ
|
بِنْتَيْنِ
|
|
مَدْرَسَة (School)
|
مَدْرَسَتَانِ
|
مَدْرَسَتَيْنِ
|
|
قَلَم (Pen)
|
قَلَمَانِ
|
قَلَمَيْنِ
|
|
بَيْت (House)
|
بَيْتَانِ
|
بَيْتَيْنِ
|
|
طَالِب (Student)
|
طَالِبَانِ
|
طَالِبَيْنِ
|
|
سَيَّارَة (Car)
|
سَيَّارَتَانِ
|
سَيَّارَتَيْنِ
|
|
مُعَلِّم (Teacher)
|
مُعَلِّمَانِ
|
مُعَلِّمَيْنِ
|
Meanings
The dual number is a grammatical category used to indicate exactly two of something, distinct from singular (one) and plural (three or more).
Nominative Dual
Used when the dual noun is the subject of the sentence.
“الْبَيْتَانِ كَبِيرَانِ (The two houses are big).”
“جَاءَ صَدِيقَانِ (Two friends came).”
Accusative/Genitive Dual
Used when the dual noun is the object of a verb or follows a preposition.
“أَحْبَبْتُ الْكِتَابَيْنِ (I liked the two books).”
“ذَهَبْتُ مَعَ صَدِيقَيْنِ (I went with two friends).”
Reference Table
| 性别 | 单数 | 双数 (主格) -ān | 双数 (宾格/属格) -ayn |
|---|---|---|---|
|
阳性
|
kitāb (书)
|
kitābān (كتابان)
|
kitābayn (كتابين)
|
|
阴性
|
sayyāra (汽车)
|
sayyāratān (سيارتان)
|
sayyāratayn (سيارتين)
|
|
阳性 (人)
|
muhandis (工程师)
|
muhandisān (مهندسان)
|
muhandisayn (مهندسين)
|
|
阴性 (人)
|
ṭāliba (学生)
|
ṭālibatān (طالبتان)
|
ṭālibatayn (طالبتين)
|
正式程度
لَدَيَّ أَخَوَانِ. (Family introduction)
عِنْدِي أَخَوَانِ. (Family introduction)
عِنْدِي أَخَوَانِ. (Family introduction)
عِنْدِي أَخَوَانِ. (Family introduction)
阿拉伯语的“三个数”
单数 (1)
- Kitāb 一本书
双数 (2) - 规则
- Kitābān 两本书
复数 (3+)
- Kutub 许多书
结尾大比拼：-ān vs -ayn
我该选择哪个结尾？
你是在谈论“两个”东西吗？
它们是做动作的一方吗？
双数用法示例
身体部位 (成双)
- • Yadān (2 hands)
- • Aynān (2 eyes)
- • Rijlān (2 legs)
时间
- • Sā'atān (2 hours)
- • Yawmān (2 days)
- • Usbū'ān (2 weeks)
按水平分级的例句
وَلَدَانِ
Two boys
بِنْتَانِ
Two girls
كِتَابَيْنِ
Two books
قَلَمَيْنِ
Two pens
الْبَيْتَانِ جَمِيلَانِ
The two houses are beautiful
أَكَلْتُ تُفَّاحَتَيْنِ
I ate two apples
ذَهَبْتُ مَعَ صَدِيقَيْنِ
I went with two friends
هَذَانِ كِتَابَانِ
These are two books
رَأَيْتُ طَالِبَيْنِ مُجْتَهِدَيْنِ
I saw two hardworking students
اشْتَرَيْتُ سَيَّارَتَيْنِ جَدِيدَتَيْنِ
I bought two new cars
يَعْمَلُ الْمُوَظَّفَانِ فِي الشَّرِكَةِ
The two employees work in the company
سَافَرْتُ إِلَى مَدِينَتَيْنِ
I traveled to two cities
تَكَلَّمَ الرَّجُلَانِ عَنِ الْمُشْكِلَتَيْنِ
The two men talked about the two problems
لَدَيَّ فِكْرَتَانِ رَائِعَتَانِ
I have two wonderful ideas
تَشَاوَرَ الْوَزِيرَانِ فِي الْقَضِيَّتَيْنِ
The two ministers consulted on the two cases
هَاتَانِ الصُّورَتَانِ قَدِيمَتَانِ
These two pictures are old
تَبَادَلَ الشَّرِيكَانِ الْوَثِيقَتَيْنِ
The two partners exchanged the two documents
تَطَلَّبَ الْأَمْرُ مَهَارَتَيْنِ عَالِيَتَيْنِ
The matter required two high skills
تَوَاجَهَ الْخَصْمَانِ فِي الْمَحْكَمَةِ
The two opponents faced each other in court
تَأَمَّلْتُ فِي النَّظَرِيَّتَيْنِ
I contemplated the two theories
تَجَلَّتْ فِي الْقَصِيدَتَيْنِ مَعَانٍ عَمِيقَةٌ
Deep meanings manifested in the two poems
تَوَازَنَ الْعُنْصُرَانِ فِي التَّفَاعُلِ
The two elements balanced in the reaction
تَشَابَهَتِ الْحَالَتَانِ فِي كُلِّ شَيْءٍ
The two cases were similar in everything
تَوَارَثَ الْأَبْنَاءُ الْأَرْضَيْنِ
The sons inherited the two lands
容易混淆
Learners often use the plural for two items.
Mixing up -ān and -ayn.
Keeping the ة in the dual form.
常见错误
كِتَابَات
كِتَابَانِ
مَدْرَسَةَانِ
مَدْرَسَتَانِ
قَلَمَانِ (as object)
قَلَمَيْنِ
بِنْتَيْنِ (as subject)
بِنْتَانِ
كِتَابَيْنِ كَبِيرَانِ
كِتَابَيْنِ كَبِيرَيْنِ
هَذَا كِتَابَانِ
هَذَانِ كِتَابَانِ
يَذْهَبُ الطَّالِبَانِ
يَذْهَبُ الطَّالِبَانِ (Correct, but watch verb agreement)
رَأَيْتُ اثْنَيْنِ كِتَابَيْنِ
رَأَيْتُ كِتَابَيْنِ
هُمَا طَالِبٌ
هُمَا طَالِبَانِ
سَافَرْتُ مَعَ صَدِيقَانِ
سَافَرْتُ مَعَ صَدِيقَيْنِ
تَكَلَّمَ الرَّجُلَانِ عَنِ الْمُشْكِلَةِ
تَكَلَّمَ الرَّجُلَانِ عَنِ الْمُشْكِلَتَيْنِ
كِلَا الْكِتَابَانِ
كِلَا الْكِتَابَيْنِ
رَأَيْتُ كِلْتَا الْبِنْتَانِ
رَأَيْتُ كِلْتَا الْبِنْتَيْنِ
句型
لَدَيَّ ___ (two items).
___ (The two items) جَمِيلَانِ.
رَأَيْتُ ___ (two items) فِي المَكْتَبَةِ.
هَاتَانِ ___ (two items) قَدِيمَتَانِ.
Real World Usage
أُرِيدُ سَنْدَوِيتْشَيْنِ.
شُفْتُ صَدِيقَيْنِ الْيَوْم.
لَدَيَّ خِبْرَتَانِ فِي هَذَا الْمَجَالِ.
حَجَزْتُ غُرْفَتَيْنِ.
هَاتَانِ صُورَتَانِ مِنْ رِحْلَتِي.
كَتَبْتُ وَاجِبَيْنِ.
身体部位成双成对！
别太纠结那个“N”的发音
口语和书面语的小区别
Smart Tips
Always check if you need -ān or -ayn.
Remember the ة to ت switch.
Make sure the adjective also ends in -ān or -ayn.
Use the dual consistently.
发音
Nūn sound
The final 'n' (ن) is always pronounced clearly in the dual.
Statement
الْبَيْتَانِ كَبِيرَانِ ↘
Falling intonation for declarative sentences.
记住它
记忆技巧
Remember: 'ān' is for the 'An'chor (Subject), 'ayn' is for the 'Eye' (Object).
视觉联想
Imagine a pair of glasses. The two lenses are the 'dual'. When you look at them as the subject, they are 'ān' (big), when you look through them as an object, they are 'ayn' (clear).
Rhyme
For two things, add -ān or -ayn, it makes your Arabic sound really fine!
Story
Ali has two cats. He says 'My cats (qittatān) are hungry.' He feeds his two cats (qittatayn) and then plays with his two cats (qittatayn).
Word Web
挑战
Look around your room and name 3 pairs of items using the dual form in 60 seconds.
文化笔记
The dual is very much alive in daily speech, especially when ordering food or talking about family.
While the dual is used, sometimes people use the plural for items that come in pairs, but the dual is still preferred for precision.
The dual is used very formally and correctly in all contexts.
The dual number is a Proto-Semitic feature that has been lost in most modern languages but preserved in Arabic.
对话开场白
كَمْ أَخًا لَدَيْكَ؟
مَاذَا اشْتَرَيْتَ مِنَ السُّوقِ؟
كَيْفَ تَصِفُ هَذَيْنِ الْكِتَابَيْنِ؟
مَا هِيَ مُمَيِّزَاتُ هَاتَيْنِ الْمَدِينَتَيْنِ؟
日记主题
常见错误
Test Yourself
I visited two cities: Zurtu ___ (madīna).
Choose the correct translation for: 'The two teachers arrived.'
Find and fix the mistake:
Qara'tu kitābān (قرأت كتابان) fī al-bayt.
Score: /3
练习题
8 exercisesلَدَيَّ ___ (two pens).
___ (The two girls) ذَهَبَتَا إِلَى الْمَدْرَسَةِ.
Find and fix the mistake:
رَأَيْتُ طَالِبَانِ.
هَذَا كِتَابٌ. (Make it two)
سَيَّارَة
مُعَلِّم (Subject)
أَكَلْتُ + تُفَّاحَة (dual)
The dual is used for 3 items.
Score: /8
Practice Bank
10 exercisesThe two students are smart: Al-tālibān ___ (dhakī).
I am looking for two pens (qalam). Abḥathu 'an ___.
Hadhihi bintān jamīlatān.
正确配对：
I speak two languages: Atakallamu ___ (lugha).
Which matches: 'Two small cats' (as subject)?
Al-waladān ya'kul.
Between two mountains: Bayna ___ (jabal).
How do you say 'two years' (sana)?
连接功能与后缀
Score: /10
常见问题 (8)
No, the dual is strictly for two. For three or more, use the plural.
It changes based on the grammatical case (subject vs object).
Yes, you must change it to ت before adding the dual suffix.
Yes, especially in the Levant and formal contexts.
Check if the noun is the subject (doer) or the object (receiver).
Yes, adjectives must match the noun in number and case.
You will be understood, but it won't sound as natural or precise.
Most nouns follow the standard rule, which is one of the best things about Arabic!
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Two + plural noun
Arabic uses a suffix; English uses a separate word.
Dos + plural noun
Arabic dual is a morphological change, not a syntactic one.
Zwei + plural noun
Arabic dual is unique to its case system.
Futatsu no + noun
Arabic is highly inflectional.
Liang + measure word + noun
Arabic dual is built into the noun.
Suffix -ayim
The suffix sound is slightly different (-ayim vs -ayn).
Learning Path
Prerequisites
Learn These First
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