Persian can count a noun directly—سه کتاب se ketâb “three books”—or insert a counting word: سه تا کتاب se tâ ketâb. تا is a broad, especially conversational counter for individual items; نفر nafar counts people. Neither is obligatory in every numeral phrase, and Persian is not a language in which every noun must select a classifier.
The stable order is number + optional counting word + singular noun. English pluralizes books after three; Persian normally leaves کتاب singular. Plurality is already supplied by the numeral, so adding ها usually produces an unmotivated double signal.
For compound cardinal forms, see Numbers with Nouns. This page concentrates on the noun-phrase choices available once the number is known.
The three basic patterns
| Pattern | Example | Register and meaning |
|---|---|---|
| number + singular noun | سه کتاب | neutral in speech and writing |
| number + تا + singular noun | سه تا کتاب | common conversational counting of items |
| number + نفر + singular human noun | سه نفر دانشجو | neutral/careful counting of people |
| number + نفر | سه نفر | “three people,” with the human noun understood |
سه کتاب از کتابخانه گرفتم.
se ketâb az ketâbkhâne gereftam.
I borrowed three books from the library.
سه تا کتاب برای سفر برداشتم.
se tâ ketâb barâ-ye safar bardâshtam.
I packed three books for the trip. (conversational)
The first sentence suits any register. The second presents the books as three countable items and sounds particularly natural in conversation.
تا as a general conversational counter
Counting تا follows the number and precedes the counted noun: دو تا سیب, چهار تا صندلی, پنج تا سؤال. It is especially frequent with small numbers, concrete objects, choices, and requests in (informal) and neutral spoken Persian. Careful written prose often omits it.
دو تا سیب برای بچهها کنار گذاشتم.
do tâ sib barâ-ye bachche-hâ kenâr gozâshtam.
I set aside two apples for the children. (conversational)
چهار تا صندلی دور میز بگذارید.
chahâr tâ sandali dowr-e miz begzârid.
Put four chairs around the table. (spoken instruction)
پنج تا سؤال هنوز بیپاسخ مانده است.
panj tâ so'âl hanuz bi-pâsokh mânde ast.
Five questions still remain unanswered. (conversational framing)
This counting use of تا is functionally distinct from the preposition/conjunction تا “until, up to, so that.” Position resolves the ordinary cases: counting تا immediately follows a numeral and introduces a noun.
تا is optional, not a universal classifier
Omitting تا does not make a count incomplete. چهار صندلی is concise and standard; چهار تا صندلی foregrounds four individual units and has a more conversational rhythm. Technical tables, reports, and formal inventories commonly use the bare numeral pattern.
چهار صندلی برای سالن سفارش داده شد.
chahâr sandali barâ-ye sâlon sefâresh dâde shod.
Four chairs were ordered for the hall. (formal/neutral)
دو نسخه از قرارداد پیوست شده است.
do noskhe az qarârdâd peyvast shode ast.
Two copies of the contract are attached. (formal)
The second sentence also shows a partitive: دو نسخه از قرارداد “two copies of the contract.” The counted noun نسخه remains singular.
نفر specializes in human counting
نفر is the conventional counting noun for people: دو نفر مهمان, پنج نفر کارمند. It is normal in announcements, reports, and ordinary speech. The following human noun remains singular.
دو نفر مهمان زودتر از بقیه رسیدند.
do nafar mehmân zud-tar az baqiye residand.
Two guests arrived earlier than the others.
پنج نفر کارمند در دوره شرکت کردند.
panj nafar kârmand dar dowre sherkat kardand.
Five employees participated in the course.
سه نفر دانشجو برای مصاحبه انتخاب شدند.
se nafar dâneshju barâ-ye mosâhebe entekhâb shodand.
Three students were selected for an interview.
With no following noun, نفر itself means the counted people: سه نفر آمدند. The form remains singular after the numeral even though the referent is plural.
فقط سه نفر تا پایان جلسه ماندند.
faqat se nafar tâ pâyân-e jalase mândand.
Only three people stayed until the end of the meeting.
Here the second تا means “until”; it does not follow a number and is not a counter.
Counting people with تا
Conversational Persian can use تا with a human noun, especially when speakers treat the referents as members of a small set: دو تا دانشجو. It is grammatical (informal) Iranian usage, but دو نفر دانشجو is more neutral and appropriate in formal reporting. The difference is register and construal, not a ban based on humanness.
دو تا دانشجو بیرون منتظرن.
do tâ dâneshju birun montazer-an.
Two students are waiting outside. (informal, regional: Tehran)
دو نفر دانشجو بیرون منتظر هستند.
do nafar dâneshju birun montazer hastand.
Two students are waiting outside. (careful standard)
Do not mark the colloquial sentence wrong merely because a formal report prefers نفر.
Counted nouns stay singular
The singular-after-number pattern applies even where English requires a plural: هفت روز, ده سؤال, صد نفر کارگر. A plural can appear when the numeral does not directly form a count phrase—for example, in a partitive such as سه تا از این کتابها “three of these books.” There کتابها belongs inside the plural source set after از.
سه تا از این کتابها را خواندهام.
se tâ az in ketâb-hâ râ khânde-am.
I have read three of these books.
This does not contradict singular سه کتاب. The numeral directly counts an understood “ones,” while از این کتابها names the larger plural set.
Specificity comes after the whole count phrase
A counted direct object takes را when it is specific: آن سه کتاب را “those three books.” را follows the noun and its modifiers, not the numeral or counter alone.
آن سه نفر را جلوی ورودی دیدم.
ân se nafar râ jelow-e vorudi didam.
I saw those three people in front of the entrance.
همین دو تا کلید را لازم دارم.
hamin do tâ kelid râ lâzem dâram.
I need exactly these two keys. (conversational)
The counter contributes counting structure, not definiteness. Demonstratives and discourse make the objects identifiable; را marks the resulting specific direct objects.
A short conversation
چند نفر برای جشن میآیند؟
chand nafar barâ-ye jashn mi-âyand?
How many people are coming to the party?
چهار نفر؛ پس چهار تا بشقاب روی میز بگذار.
chahâr nafar; pas chahâr tâ boshqâb ru-ye miz begzâr.
Four people; so put four plates on the table. (conversational)
The reply chooses human نفر and general-item تا in the same natural planning context.
Common Mistakes
1. Pluralizing a directly counted noun
❌ سه تا کتابها خریدم.
Incorrect direct count — the noun stays singular after number + تا.
✅ سه تا کتاب دربارهی ایران خریدم.
se tâ ketâb darbâre-ye irân kharidam.
I bought three books about Iran. (conversational)
2. Putting the counter after the noun
❌ سه سیب تا روی میز است.
Incorrect counting order — تا follows the numeral and precedes the singular noun.
✅ سه تا سیب روی میز است.
se tâ sib ru-ye miz ast.
There are three apples on the table.
3. Combining direct counting with plural marking
❌ پنج تا نسخهها از سند پیوست شده است.
Incorrect — a noun directly counted through تا remains singular.
✅ پنج نسخه از سند پیوست شده است.
panj noskhe az sanad peyvast shode ast.
Five copies of the document are attached. (formal)
4. Using نفر for inanimate objects
❌ دو نفر صندلی لازم داریم.
Incorrect — نفر counts people, not chairs.
✅ دو صندلی دیگر لازم داریم.
do sandali-ye digar lâzem dârim.
We need two more chairs.
5. Placing را inside the count phrase
❌ آن سه را نفر دانشجو دیدم.
Incorrect — را cannot split the numeral from نفر; it follows the complete counted noun phrase.
✅ آن سه نفر دانشجو را در کتابخانه دیدم.
ân se nafar dâneshju râ dar ketâbkhâne didam.
I saw those three students in the library.
Key Takeaways
- Persian uses number + optional counter + singular noun.
- تا is a broad, especially conversational counter; it is not obligatory with every noun.
- نفر conventionally counts people and can stand alone when the human category is understood.
- Plural nouns occur in a source set such as سه تا از کتابها, not in the direct count سه کتاب.
- Specificity markers such as demonstratives and را operate around the complete count phrase.
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- Numbers with NounsA1 — Combine Persian cardinals with singular counted nouns, optional counters, measures, adjectives, and meaning-based agreement.
- بعضی and چند for Indefinite QuantityA2 — Distinguish بعضی ‘some’ from چند ‘a few/how many,’ including noun number, partitives with از, and interrogative context.
- Measure Phrases without a General ClassifierB1 — Build Persian quantity phrases such as دو کیلو برنج and distinguish direct measures from ordinary ezâfe relations such as ظرف آب.
- Partitives with ازB1 — Build Persian partitives such as بعضی از and یکی از, choose a delimited whole, and control agreement, را, and pronominal clitics.
- Approximate and Vague QuantifiersB2 — Place حدود, تقریبا, نزدیک به, and چندین accurately while controlling their scope over Persian numbers and noun phrases.