Can and “To Be Able” in Persian

In Brief

Persian uses توانستن (tavānestan, “to be able”) to express ability: می‌توانم (mitavānam) means “I can.” In everyday conversation, the same form is usually shortened to می‌تونم (mitunam). If another verb follows, it normally takes the subjunctive form—a dependent verb form used after ideas such as “can,” “want,” and “must”: می‌توانم بروم means “I can go.”

Overview

توانستن is the basic Persian verb for saying that someone can do something or is able to do it. You need it very early, at A1 level, for talking about skills, availability, permission, and practical requests: “I can speak Persian,” “Can you come tomorrow?” and “Can you help me?”

English uses the unchanging word can: “I can,” “she can,” and “they can.” Persian instead conjugates توانستن, meaning that its ending changes to match the subject (the person or thing performing the action). Persian often leaves the subject pronoun unstated because this ending already identifies it. Thus می‌توانم can stand alone as “I can,” without من (“I”).

There are two sets of forms worth recognizing from the beginning. Formal written Persian uses forms such as می‌توانم and می‌توانید. Ordinary spoken Persian usually contracts them to می‌تونم and می‌تونید. Both sets are normal, but they belong to different registers: formal writing and careful speech favor the full forms, while casual conversation favors the contractions.

How It Works

The infinitive and the present stem

The dictionary form, or infinitive (the form listed as “to …” in a dictionary), is توانستن (tavānestan). Its present stem is توان (tavān). The formal present is built with:

می‌ + توان + personal ending

The personal ending shows who is able to do something.

Person	Formal Persian	Transliteration	Everyday spoken Persian	Meaning
من	می‌توانم	mitavānam	می‌تونم (mitunam)	I can
تو	می‌توانی	mitavāni	می‌تونی (mituni)	you can (singular, informal)
او	می‌تواند	mitavānad	می‌تونه (mitune)	he/she can
ما	می‌توانیم	mitavānim	می‌تونیم (mitunim)	we can
شما	می‌توانید	mitavānid	می‌تونید (mitunid)	you can (plural or polite)
آن‌ها	می‌توانند	mitavānand	می‌تونن (mitunan)	they can

The written prefix می‌ is joined to the verb with a half-space, not an ordinary full space. In informal messages, native speakers do not always type spacing consistently, but می‌توانم is the standard spelling.

Adding the action: “can do”

When توانستن is followed by another verb, the basic pattern is:

subject + conjugated توانستن + main verb in the subjunctive

The subjunctive is a verb form used when an action is presented as possible, wanted, necessary, or dependent on another idea rather than simply stated as a fact. After توانستن, it names the action that is possible.

Pattern	Persian	Meaning
I + can + speak	من می‌توانم صحبت کنم.	I can speak.
you + can + come	تو می‌توانی بیایی.	You can come.
they + can + go	آن‌ها می‌توانند بروند.	They can go.

Unlike English, Persian does not use a bare dictionary form after “can.” In “I can go,” both verbs agree with “I”: می‌توانم بروم. In “We can go,” both become plural: می‌توانیم برویم.

For many simple verbs, the subjunctive begins with بـ (be-):

• رفتن (“to go”) → بروم (“that I go”)
• آمدن (“to come”) → بیایم (“that I come”)
• خواندن (“to read”) → بخوانم (“that I read”)

With a compound verb—a verb made from a noun or adjective plus a helper verb—بـ attaches to the verbal part: صحبت کنم (“that I speak”), کار کنم (“that I work”), کمک کنم (“that I help”). Some very common verbs have irregular subjunctive stems, so it is best to learn useful phrases as complete units.

Negation

To say “cannot,” replace می‌ at the beginning of توانستن with نمی‌:

Affirmative	Negative	Meaning
می‌توانم	نمی‌توانم	I can / I cannot
می‌توانی	نمی‌توانی	you can / you cannot
می‌تواند	نمی‌تواند	he/she can / cannot
می‌توانیم	نمی‌توانیم	we can / cannot
می‌توانید	نمی‌توانید	you can / cannot
می‌توانند	نمی‌توانند	they can / cannot

In colloquial speech, نمی‌توانم becomes نمی‌تونم. The negative marker belongs on توانستن, not on the following action: نمی‌توانم بیایم (“I cannot come”).

Questions and requests

Persian can turn a statement into a yes/no question mainly through rising intonation in speech or a question mark in writing:

• می‌تونی فردا بیای؟ — “Can you come tomorrow?”
• می‌توانید صبر کنید؟ — “Can you wait?”

Use تو / می‌تونی with a friend or one person you address informally. Use شما / می‌توانید in formal writing or polite speech. Spoken polite Persian commonly combines شما with the contracted plural verb می‌تونید.

A question with “can” often functions as a request rather than a literal inquiry about ability. می‌تونید کمکم کنید؟ can mean the natural English “Could you help me?” even though its Persian verb is present tense. Adding لطفاً (“please”) makes the request more explicit: لطفاً می‌تونید آهسته‌تر صحبت کنید؟

Omitting the subject

Because the ending identifies the person, the pronoun is usually optional:

• می‌تونم شنا کنم. — “I can swim.”
• می‌تونید وارد شوید. — “You may enter.”

Include the pronoun for contrast or clarity: من می‌تونم، ولی او نمی‌تونه (“I can, but he/she can’t”). Persian او does not distinguish “he” from “she”; context supplies the meaning.

Examples in Context

Persian	Romanization	English	Note
می‌توانم فارسی صحبت کنم.	mitavānam fārsi sohbat konam	I can speak Persian.	Neutral formal/written form
می‌تونم کمی فارسی بخونم.	mitunam kami fārsi bekhunam	I can read a little Persian.	Everyday spoken form
نمی‌تونم بیام.	nemitunam biyām	I can’t come.	Common conversational sentence
تو می‌تونی رانندگی کنی؟	to mituni rānnandegi koni?	Can you drive?	Informal singular “you”
می‌توانید کمکم کنید؟	mitavānid komakam konid?	Can you help me?	Formal or polite request
می‌تونید آهسته‌تر صحبت کنید؟	mitunid āhestetar sohbat konid?	Can you speak more slowly?	Polite spoken Persian
او می‌تواند این متن را بخواند.	u mitavānad in matn rā bekhānad	He/She can read this text.	Formal written style
امروز نمی‌توانیم شما را ببینیم.	emruz nemitavānim shomā rā bebinim	We can’t see you today.	Negative ability or availability
بچه‌ها می‌تونن بیرون بازی کنن.	bachehā mitunan birun bāzi konan	The children can play outside.	Colloquial plural forms
فردا می‌تونی زودتر بیای؟	fardā mituni zudtar biyāy?	Can you come earlier tomorrow?	A practical request
اینجا می‌توانید کارت بکشید.	injā mitavānid kārt bekeshid	You can pay by card here.	Availability or permission
بالاخره توانستم با او صحبت کنم.	belākhare tavānestam bā u sohbat konam	I finally managed to speak with him/her.	Successful ability on one occasion
وقتی بچه بودم، نمی‌توانستم شنا کنم.	vaqti bache budam, nemitavānestam shenā konam	When I was a child, I couldn’t swim.	Continuing past inability
شاید بتوانیم فردا برویم.	shāyad betavānim fardā beravim	Maybe we can go tomorrow.	Advanced: توانستن itself is subjunctive

Common Mistakes

Using the infinitive after “can”

• Wrong: می‌توانم رفتن.
• Right: می‌توانم بروم.
• Why: English uses the unchanged verb “go” after can, but Persian uses a conjugated subjunctive. Here بروم agrees with the understood subject “I.”

Keeping the second verb in the ordinary present

• Wrong: می‌توانم می‌روم.
• Right: می‌توانم بروم.
• Why: می‌روم states “I go/I am going.” After توانستن, use the dependent form بروم, without می‌.

Making only the second verb negative

• Wrong for “I can’t come”: می‌توانم نیایم.
• Right: نمی‌توانم بیایم.
• Why: Put the negation on توانستن when the inability is negative. می‌توانم نیایم has a different meaning: “I can choose not to come” or “It is possible for me not to come.”

Mixing formal and colloquial forms carelessly

• Awkward in polished writing: می‌تونم درخواست را ارسال کنم.
• Better in polished writing: می‌توانم درخواست را ارسال کنم.
• Natural in conversation: می‌تونم درخواست رو بفرستم.
• Why: می‌تونم is normal speech, not an error, but formal prose generally expects می‌توانم. The surrounding vocabulary and object marker often change register too.

Forgetting agreement on the main verb

• Wrong: ما می‌توانیم بروم.
• Right: ما می‌توانیم برویم.
• Why: Both verbs must match ما (“we”): می‌توانیم and برویم.

Using informal singular forms in a polite situation

• Too informal for a stranger: می‌تونی کمکم کنی؟
• Polite: می‌توانید کمکم کنید؟ or spoken می‌تونید کمکم کنید؟
• Why: Persian distinguishes informal singular تو forms from plural/polite شما forms. Choose the relationship first, then make both verbs agree with it.

Usage Notes

Formal writing and everyday speech

The change from توان to spoken تون is extremely common. It is not merely careless pronunciation: it is part of the normal colloquial system. In a conversation, می‌توانم may sound careful or formal, while می‌تونم is usually unmarked and natural. In an essay, official message, news report, or formal exam answer, use می‌توانم.

Colloquial change may affect the following verb as well. Formal می‌توانند صحبت کنند becomes spoken می‌تونن صحبت کنن. Learners sometimes memorize only the formal paradigm and then fail to recognize a familiar sentence in speech. Practice both forms as pairs.

Ability, opportunity, and permission

Like English can, توانستن covers several related meanings:

• learned ability: می‌تونم شنا کنم — “I can swim.”
• practical possibility: امروز می‌تونم بیام — “I can come today.”
• permission or availability: می‌توانید وارد شوید — “You may/can enter.”
• a request: می‌تونی در رو ببندی؟ — “Can you close the door?”

Context normally makes the intended meaning clear. For explicit permission, Persian can also use expressions such as اجازه داشتن (“to have permission”), but beginners can use توانستن in many everyday situations.

“Can” does not always need توانستن

English uses can in some conventional phrases where Persian may prefer a more direct expression. For example, a server might simply ask چی میل دارید؟ (“What would you like?”) rather than translate “What can I get you?” word for word. Learn common Persian situations as phrases instead of forcing توانستن into every English sentence containing can.

Beyond the Basics / Advanced Use

You do not need to master all of these contrasts at A1, but you will meet them as soon as you talk about the past or place توانستن after another modal expression.

Different kinds of past ability

The simple past توانستم often presents ability as achieved on a particular occasion and can therefore mean “I managed to”:

• بالاخره توانستم در را باز کنم. — “I finally managed to open the door.”

The imperfect form می‌توانستم describes continuing, habitual, or unrealized past ability: “I was able to,” “I could,” or sometimes “I could have,” depending on context.

• وقتی جوان‌تر بودم، می‌توانستم ده کیلومتر بدوم. — “When I was younger, I could run ten kilometers.”
• می‌توانستم زودتر بیایم، ولی خبر نداشتم. — “I could have come earlier, but I didn’t know.”

Its negative is نمی‌توانستم: نمی‌توانست بخوابد means “He/She couldn’t sleep.” In colloquial speech these become تونستم، می‌تونستم، نتونستم, and نمی‌تونستم, with the exact choice reflecting whether the speaker presents the event as a completed attempt or an ongoing state.

When توانستن itself becomes subjunctive

After words such as شاید (“maybe”) or in certain dependent clauses, توانستن can itself take the subjunctive prefix بـ instead of می‌:

• شاید بتوانم کمک کنم. — “Maybe I can help.”
• اگر بتوانیم، فردا می‌آییم. — “If we can, we’ll come tomorrow.”

Notice the two layers: بتوانم is the subjunctive form of “be able,” and کمک کنم is the subjunctive action after it. Spoken Persian commonly contracts بتوانم to بتونم.

توانایی داشتن as a more noun-based alternative

Formal Persian can express capacity with توانایی داشتن (“to have the ability”): او توانایی حل این مسئله را دارد means “He/She has the ability to solve this problem.” This is useful in formal or analytical writing, but it is heavier than everyday می‌تواند این مسئله را حل کند. For ordinary conversation, توانستن is usually the better choice.

Practice Tips

1. Build two matching columns. Say the formal and spoken forms as pairs: می‌توانم / می‌تونم, می‌توانی / می‌تونی, and so on. This helps you write accurately while still understanding conversation.
2. Practice complete two-verb chunks. Do not memorize only می‌تونم. Combine it with five useful actions: می‌تونم بیام، می‌تونم برم، می‌تونم بخونم، می‌تونم صحبت کنم، می‌تونم کمک کنم.
3. Turn each sentence into four versions. Start with می‌تونی بیای (“you can come”), then make it negative, a question, and polite: نمی‌تونی بیای؛ می‌تونی بیای؟؛ می‌تونید بیاید؟ This trains negation, intonation, and agreement together.

Related Concepts

• Prerequisite: Simple Present Tense — provides the personal endings and the basic می‌ verb pattern used in می‌توانم.