O Número Dual Árabe: Para Duas Coisas (-aani / -ayni)
remova o Nuun quando for posse. «كتابان»
Grammar Rule in 30 Seconds
In Arabic, use the suffix '-aani' or '-ayni' to turn a singular noun into exactly two items.
- Use '-aani' (ان) for nominative case (subject/predicate). Example: 'kitaabaani' (two books).
- Use '-ayni' (ين) for accusative/genitive cases (object/after preposition). Example: 'kitaabayn' (two books).
- The final 'n' (nunation) drops when the dual noun is in a construct state (Idafa). Example: 'kitaaba al-walad'.
Overview
المثنى). Em português, adicionamos um 's', quer sejam dois gatos ou vinte.How This Grammar Works
الإعراب). Se o substantivo for o sujeito (Nominativo), recebe um sufixo. Se for o objeto ou seguir uma preposição (Acusativo/Genitivo), recebe outro.Formation Pattern
ـانِ (-aani). Exemplo: كتاب passa a كتابانِ.
ـَيْنِ (-ayni). Exemplo: كتابَيْنِ.
ة). Abre-o num Taa normal (ت) antes de adicionar o sufixo. Exemplo: سيارة passa a سيارتانِ.
إضافة), DEVES deixar cair o ن (nuun) final. Os dois carros do gerenteé
سيارتا المدير, e nunca سيارتان المدير.
When To Use It
عينان, mãos يدان) estão quase sempre no dual. Em contextos informais ou dialetos, as pessoas fazem batota e usam sempre o sufixo -ayn (ـين), ignorando o caso nominativo, mas para escrita e árabe padrão, precisas de ambos.Common Mistakes
كتابان الطالب. Deixa cair o nuun: كتابا الطالب. Outro erro frequente são adjetivos que não concordam. Deves dizer البنتان جميلتان (as duas raparigas bonitas). Finalmente, não confundas a pronúncia do dual ـَيْنِ (-ayni) com a do plural masculino regular ـِينَ (-eena).Contrast With Similar Patterns
ـَيْنِ) e o Plural Masculino (ـِينَ) nos casos Acusativo/Genitivo. Sem vogais, parecem idênticos (مهندسين). A diferença gramatical está nas vogais curtas.مُهَنْدِسَيْنِ. O plural põe uma kasra antes do Yaa e uma fatha no Nuun: مُهَنْدِسِينَ.Quick FAQ
Tenho mesmo de omitir o Nuun em Idaafah?
Sim, absolutamente. É uma regra muito rígida no Árabe Padrão.
Como é que os dialetos lidam com o dual?
Simplificam, usando apenas -ayn para tudo.
E se eu tiver três coisas?
Então usas o plural. O dual é só para exatamente dois.
O dual aplica-se aos verbos?
Sim! Os verbos também têm de concordar no dual.
Dual Noun Formation
| Singular | Nominative (Subject) | Accusative/Genitive (Object) |
|---|---|---|
|
كتاب (Book)
|
كتابانِ
|
كتابينِ
|
|
طالب (Student)
|
طالبانِ
|
طالبينِ
|
|
سيارة (Car)
|
سيارتانِ
|
سيارتينِ
|
|
مدينة (City)
|
مدينتانِ
|
مدينتينِ
|
|
قلم (Pen)
|
قلمانِ
|
قلمينِ
|
|
بيت (House)
|
بيتانِ
|
بيتينِ
|
Meanings
The dual number is a grammatical number used to indicate exactly two of something, distinct from singular and plural.
Nominative Dual
Used when the dual noun is the subject or predicate.
“الولدانِ يلعبانِ”
“هذانِ كتابانِ”
Accusative/Genitive Dual
Used when the noun is an object or follows a preposition.
“رأيتُ ولدينِ”
“ذهبتُ إلى مدينتينِ”
Reference Table
| Tipo de Substantivo | Singular | Dual Nominativo (Sujeito) | Dual Acusativo/Genitivo (Objeto) |
|---|---|---|---|
|
Masculino
|
كتاب (kitaab)
|
كتابانِ (kitaabaani)
|
كتابَيْنِ (kitaabayni)
|
|
Feminino (ة)
|
سيارة (sayyaarah)
|
سيارتانِ (sayyaarataani)
|
سيارتَيْنِ (sayyaarataayni)
|
|
Parte do Corpo em Par
|
عين (ayn)
|
عينانِ (aynaani)
|
عينَيْنِ (aynayni)
|
|
Idaafah (Remover Nuun)
|
مدير (mudeer)
|
مديرا الشركة (mudeeraa...)
|
مديرَيْ الشركة (mudeeray...)
|
|
Alif Maqsura
|
مستشفى (mustashfa)
|
مستشفيانِ (mustashfayaani)
|
مستشفيَيْنِ (mustashfayayni)
|
|
Terminando em Hamza
|
صحراء (sahraa')
|
صحراوانِ (sahraawaani)
|
صحراوَيْنِ (sahraawayni)
|
Espectro de formalidade
لديَّ أخوانِ. (Family introduction)
عندي أخوانِ. (Family introduction)
عندي أخين. (Family introduction)
عندي أخين. (Family introduction)
O Ecossistema do Substantivo Dual
Sujeito (Nominativo)
- ـانِ Adicionar -aani
Objeto/Preposição (Acusativo/Genitivo)
- ـَيْنِ Adicionar -ayni
Idaafah (Posse)
- حذف النون Remover o Nuun
Dual vs. Plural (Identifique a Diferença)
Qual sufixo devo usar?
O substantivo é o sujeito?
É o objeto ou está depois de uma preposição?
Regra da Idaafah: Removendo o Nuun
Dual Normal
- • سيارتان
- • كتابان
- • معلمان
Idaafah (Nuun Removido)
- • سيارتا المدير
- • كتابا الطالب
- • معلما المدرسة
Exemplos por nível
كتابانِ
Two books
رأيتُ ولدينِ
I saw two boys
هاتانِ سيارتانِ جميلتانِ
These are two beautiful cars
سافرتُ إلى مدينتينِ في الصيف
I traveled to two cities in the summer
قرأتُ كتابينِ في الأسبوع الماضي
I read two books last week
إنَّ هذينِ الطالبينِ مجتهدانِ
Indeed, these two students are diligent
Fácil de confundir
Learners often use the plural for two items.
Learners use 'aani' for everything.
Learners keep the 'n' in construct states.
Erros comuns
كتابات
كتابان
سيارةان
سيارتان
رأيتُ كتابان
رأيتُ كتابين
بنتان
بنتان
مدينتانِ في
مدينتينِ في
قلمون
قلمان
هذانِ كتابينِ
هذانِ كتابانِ
كتابا الطالبان
كتابا الطالبِ
رأيتُ طالبتان
رأيتُ طالبتين
هاتينِ سيارتينِ
هاتانِ سيارتانِ
مُعلّمي المدرسة
مُعلّما المدرسة
كتابينِ الطالب
كتابا الطالب
رأيتُ المعلمان
رأيتُ المعلمَيْن
Padrões de frases
هذانِ ___.
رأيتُ ___ في الشارع.
سافرتُ إلى ___ في الصيف.
إنَّ ___ مجتهدانِ.
Real World Usage
أريدُ شطيرتينِ.
شفتُ صديقينِ اليوم.
لديَّ خبرةُ سنتينِ.
حجزتُ غرفتينِ.
هذانِ كتابانِ رائعانِ.
تتكونُ الدراسةُ من جزأينِ.
A Armadilha da Pronúncia
ـَيْنِ (-ayni) com o plural ـِينَ (-eena). O dual soa como 'dei', enquanto o plural soa como 'cina'. «مُعَلِّمَيْنِ» (dois professores) versus «مُعَلِّمِينَ» (muitos professores).Dica Secreta dos Dialetos
ـين (-ayn) para tudo! Muitos dialetos simplesmente eliminaram a forma ـان. «أريد شاورمتين لو سمحت.»Sempre em Pares
Smart Tips
Check if your noun is the subject or object before choosing the suffix.
Always open the taa marbuta first.
Drop the 'n' in Idafa constructs.
If you are unsure, use the accusative form as it is common in many dialects.
Pronúncia
Nunation
The final 'n' sound is a nunation (tanween).
Statement
هذانِ كتابانِ ↘
Falling intonation for declarative sentences.
Memorize
Mnemônico
Think of 'Aani' as 'A-two-ni' (sounds like two) for subjects, and 'Ayni' as 'Eye-ni' (two eyes) for objects.
Associação visual
Imagine a pair of glasses. The two lenses are the 'dual' suffix. If you are looking at them (subject), they are 'aani'. If you are holding them (object), they are 'ayni'.
Rhyme
For the subject use the 'an', for the object use the 'ayn'.
Story
Ali has two cats. He says, 'These are my qittataani (two cats).' He feeds his qittatayn (two cats) every day. He loves his two cats.
Word Web
Desafio
Write 5 sentences today describing things you have in pairs (shoes, eyes, hands, etc.).
Notas culturais
In many dialects, the 'aani' suffix is often replaced by 'ayn' in all cases.
The dual is used, but often the 'n' is dropped in casual speech.
The dual is preserved very strictly in formal and semi-formal speech.
The dual number is a Proto-Semitic feature that has been lost in many other Semitic languages but preserved in Arabic.
Iniciadores de conversa
كم أخاً لديك؟
ماذا اشتريتَ من السوق؟
كم سنةً درستَ اللغة العربية؟
ما رأيك في هذينِ الكتابينِ؟
Temas para diário
Erros comuns
Test Yourself
الـ ___ جميلتان. (The two cars are beautiful.)
Escolha a frase gramaticalmente correta:
Find and fix the mistake:
شاهدتُ قطتان في الشارع.
Score: /3
Exercicios praticos
8 exercisesلديَّ ___ (two books).
Which is correct?
Find and fix the mistake:
هذه سيارةان.
هذا كتاب.
The dual suffix for nominative is -aani.
A: كم أخاً لديك؟ B: ___.
سافرتُ / إلى / مدينتين.
كتاب -> ?
Score: /8
Practice Bank
12 exercisesأكلتُ ___ لذيذتين. (I ate two delicious apples.)
Which phrase is correct for 'two big houses'?
غسلتُ يدان الطفلة.
Order the words to say: 'The two students are smart.'
Translate: 'My two eyes'
Singular: مهندس (Engineer) -> Dual Subject:
سافرتُ إلى ___. (I traveled to two countries.)
اشتريتُ قميصين جديدان.
How do you say 'two libraries' (مكتبة)?
Translate: 'Two cups of coffee, please.'
في أفريقيا ___ كبيرتان. (In Africa, there are two large deserts.)
Order the words to say: 'I read two long books.'
Score: /12
Perguntas frequentes (8)
Arabic uses it for precision to distinguish exactly two from three or more.
Use -aani for the nominative case (subject/predicate).
Use -ayni for the accusative/genitive case (object/preposition).
It must be opened to a 't' before adding the suffix.
Yes, but often simplified to just one form or with the 'n' dropped.
Drop the 'n' when the dual is the first part of a possessive construct.
No, it is grammatically incorrect in standard Arabic.
Check if the noun is the subject (doer) or the object (receiver).
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
No direct dual
Arabic has a specific dual category.
No direct dual
Arabic has a specific dual category.
No direct dual
Arabic has a specific dual category.
No direct dual
Arabic is highly inflected.
No direct dual
Arabic uses morphology.
Dual exists (e.g., yadayim)
Arabic uses it for almost all nouns.
Learning Path
Prerequisites
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