Eleven and twelve begin a new number system in formal Modern Standard Arabic. Both parts of the numeral agree with the counted noun's gender, and the counted noun becomes a singular accusative specification (tamyīz): أحد عشر طالبا “eleven male students,” but إحدى عشرة طالبة “eleven female students.” Twelve adds a crucial complication: its first part declines like a dual, so nominative اثنا/اثنتا contrasts with accusative and genitive اثني/اثنتي.
These forms are standard in edited prose, news, and prepared speech (formal). Regional speech commonly simplifies case and uses local pronunciations (regional: varies). The case contrasts below describe MSA and should be retained in formal writing even when short endings are not fully pronounced in less careful speech.
The plural-genitive pattern stops at ten; review Numbers 3–10 and Gender Polarity if that boundary is not yet automatic.
The noun after 11 or 12
After both eleven and twelve, the counted noun has three fixed properties:
- it is singular, never plural or dual;
- it is indefinite within the basic numeral phrase;
- it is accusative, because it specifies what is being counted.
شارك أحد عشر صحفيا في المؤتمر.
shāraka ʾaḥada ʿashara ṣaḥafiyyan fī l-muʾtamar.
Eleven journalists took part in the conference.
The whole number phrase is the subject, but صحفيا remains singular accusative. This differs sharply from 3–10, where the counted noun is plural genitive. English uses a plural after both three and eleven; Arabic makes the range boundary grammatically visible.
راجعت إحدى عشرة استمارة قبل الظهر.
rājaʿtu ʾiḥdā ʿashrata stimāratan qabla ẓ-ẓuhr.
I reviewed eleven forms before noon.
Feminine استمارة takes feminine numeral إحدى عشرة, followed by singular accusative استمارةً. Initial hamzat al-waṣl of استمارة elides after the preceding vowel, hence ʿashrata stimāratan.
Eleven: both parts agree, neither changes for case
With a masculine noun, use أحد عشر. With a feminine noun, use إحدى عشرة.
| Counted noun | Eleven | Model phrase |
|---|---|---|
| masculine singular | أحد عشر | أحد عشر موظفا |
| feminine singular | إحدى عشرة | إحدى عشرة موظفة |
The two-part numeral is built on fatḥ: its surface form remains the same whether the whole phrase occupies a nominative, accusative, or genitive position. The syntactic case is real, but eleven does not display it through different endings.
وصل أحد عشر خبيرا صباح اليوم.
waṣala ʾaḥada ʿashara khabīran ṣabāḥa l-yawm.
Eleven experts arrived this morning.
دعوت أحد عشر خبيرا إلى المائدة المستديرة.
daʿawtu ʾaḥada ʿashara khabīran ʾilā l-māʾidati l-mustadīra(h).
I invited eleven experts to the roundtable.
تشاورت مع أحد عشر خبيرا بشأن الخطة.
tashāwartu maʿa ʾaḥada ʿashara khabīran bi-shaʾni l-khuṭṭa(h).
I consulted eleven experts about the plan.
In the first example the numeral phrase is nominative, in the second accusative, and after مع in the third genitive. أحد عشر looks and sounds the same each time. The following خبيرا is accusative specification throughout; when connected to another word its tanwīn is heard as -an.
Feminine eleven works the same way:
وصلت إحدى عشرة شحنة خلال الليل.
waṣalat ʾiḥdā ʿashrata shuḥnatan khilāla l-layl.
Eleven shipments arrived during the night.
Twelve: the first part carries case
Twelve agrees for gender like eleven, but its first part behaves like the dual. اثنا/اثنتا is nominative; اثني/اثنتي is accusative or genitive. The second part, عشر/عشرة, remains fixed.
| Case of whole phrase | With masculine noun | With feminine noun |
|---|---|---|
| nominative | اثنا عشر طالبا | اثنتا عشرة طالبة |
| accusative | اثني عشر طالبا | اثنتي عشرة طالبة |
| genitive | اثني عشر طالبا | اثنتي عشرة طالبة |
حضر اثنا عشر طبيبا جلسة التدريب.
ḥaḍara thnā ʿashara ṭabīban jalsata t-tadrīb.
Twelve doctors attended the training session.
Because the number phrase is the subject, masculine twelve is nominative اثنا عشر. Its initial hamzat al-waṣl elides after حضرَ, producing ḥaḍara thnā, not ḥaḍara ʾithnā.
قابلت اثني عشر طبيبا في المستشفى.
qābaltu thnay ʿashara ṭabīban fī l-mustashfā.
I met twelve doctors at the hospital.
تحدثت مع اثني عشر طبيبا عن المشروع.
taḥaddathtu maʿa thnay ʿashara ṭabīban ʿani l-mashrūʿ.
I spoke with twelve doctors about the project.
Direct-object position and position after مع both require oblique اثني. This visible ـا/ـي alternation is the most important case contrast on the page.
أرسلت اثنتا عشرة جامعة ممثلين إلى المنتدى.
ʾarsalati thnatā ʿashrata jāmiʿatan mumaththilīna ʾilā l-muntadā.
Twelve universities sent representatives to the forum.
زار الوفد اثنتي عشرة مدرسة في المنطقة.
zāra l-wafdu thnatay ʿashrata madrasatan fī l-minṭaqa(h).
The delegation visited twelve schools in the region.
Feminine nominative اثنتا changes to accusative اثنتي. The specification remains singular accusative جامعةً/مدرسةً.
Digits still require the same grammar
In tables, schedules, and statistics, digits are common (formal/technical). Their visual form does not remove gender, case, or the singular specification when the number is read aloud.
أعلنت الوزارة أن ١٢ طبيبا، أي اثني عشر طبيبا، سيعملون في المركز الجديد.
ʾaʿlanati l-wizāratu ʾanna thnay ʿashara ṭabīban, ʾay ʾithnay ʿashara ṭabīban, sa-yaʿmalūna fī l-markazi l-jadīd.
The ministry announced that 12 doctors—that is, twelve doctors—will work at the new center.
After أنّ, the number phrase is accusative, so ١٢ is read اثني عشر, not اثنا عشر. The explicitly repeated numeral begins a new prosodic phrase after أي, so its initial hamzat al-waṣl is pronounced ʾith-.
Arabic text is right to left, but the digit sequence ١٢ retains ordinary place value: one ten plus two units. It is never read as 21 merely because it appears inside Arabic script.
Common Mistakes
Applying 3–10 polarity to eleven
❌ حضر إحدى عشر طالبا.
Incorrect — both parts of eleven agree with masculine طالب: أحد عشر.
✅ حضر أحد عشر طالبا.
ḥaḍara ʾaḥada ʿashara ṭālibā.
Eleven students attended.
Using a plural counted noun
❌ وصلت إحدى عشرة شحنات.
Incorrect — 11 and 12 take a singular accusative specification.
✅ وصلت إحدى عشرة شحنة.
waṣalat ʾiḥdā ʿashrata shuḥna(h).
Eleven shipments arrived.
Using nominative twelve as a direct object
❌ قابلت اثنا عشر طبيبا.
Incorrect — direct-object position requires oblique اثني, not nominative اثنا.
✅ قابلت اثني عشر طبيبا.
qābaltu thnay ʿashara ṭabībā.
I met twelve doctors.
Forgetting feminine عشرة
❌ زرت اثنتي عشر مدرسة.
Incorrect — with a feminine counted noun, the second component is عشرة.
✅ زرت اثنتي عشرة مدرسة.
zurtu thnatay ʿashrata madrasa(h).
I visited twelve schools.
Assigning the wrong value to ١١ in right-to-left text
❌ الرقم ١١ يعني واحدا وخمسين.
Incorrect — ١١ is eleven, not fifty-one; right-to-left layout does not change its value.
✅ الرقم ١١ يعني أحد عشر.
ʾar-raqmu ʾaḥada ʿashara yaʿnī ʾaḥada ʿashar.
The number 11 means eleven.
Key Takeaways
- Eleven is أحد عشر with masculine nouns and إحدى عشرة with feminine nouns; its form is case-invariant.
- Twelve is nominative اثنا/اثنتا but accusative or genitive اثني/اثنتي.
- Both parts agree with the counted noun's gender.
- The counted noun after 11 or 12 is singular accusative, regardless of the whole phrase's case.
- Digits inherit the grammar of the phrase when read aloud; right-to-left layout does not reverse place value.
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Start learning Arabic →Related Topics
- Numbers 3–10 and Gender PolarityA2 — Build 3–10 phrases by choosing the numeral opposite the singular noun’s gender, then using a plural genitive counted noun.
- Numbers 13–19A2 — Form 13–19 by combining a polarity-marked unit with gender-agreeing عشر or عشرة before a singular accusative specification.
- Numbers 0–10 in IsolationA1 — Read, pronounce, and distinguish the citation and gender-paired forms of Arabic zero through ten before building counted-noun phrases.