Expressing Obligation: Must & Should (bāyad)
bāyad + Subjunctive to express any present obligation or necessity in Persian.
Grammar Rule in 30 Seconds
Use 'bāyad' followed by the subjunctive verb to express necessity, obligation, or advice in Persian.
- Use 'bāyad' + Subjunctive Verb for 'must' or 'should'. Example: باید بروم (I must go).
- The verb after 'bāyad' must always be in the subjunctive mood. Example: باید بخوری (You should eat).
- To make it negative, use 'nabāyad' + Subjunctive. Example: نباید بروی (You shouldn't go).
Overview
Persian, like many languages, employs specific grammatical structures to convey obligation, necessity, and strong recommendation. The primary tool for this at the A2 CEFR level is the modal particle باید (bāyad), which directly translates to "must," "should," or "have to." Mastering bāyad is fundamental for expressing a wide array of everyday necessities, from giving advice to articulating personal duties or societal rules.
A distinctive feature of bāyad is its impersonal nature. Unlike many verbs in Persian, bāyad itself never changes its form to agree with the subject's person or number. This invariance significantly simplifies its usage for learners.
Instead, all information about the person performing the action is conveyed through the main verb that follows bāyad, which is consistently placed in the present subjunctive mood.
This grammatical partnership—an unchanging bāyad combined with a conjugated present subjunctive verb—forms a robust and versatile construction. For instance, to state "I must go," you would say من باید بروم (man bāyad beravam). This structure reflects a core principle in Persian where modal elements often collaborate with specific verb moods to build complex semantic meanings, preparing you for more advanced grammatical concepts.
How This Grammar Works
باید (bāyad) stems from its invariable form and its syntactic requirement for the following verb to be in the present subjunctive mood. This combination signals an action that is not factual or ongoing, but rather one that is desired, potential, or, in the case of bāyad, obligated. باید acts as an operator, setting the tone of necessity or advisability, while the subjunctive verb carries the specific action and subject agreement.شما باید فارسی صحبت کنید. (shomā bāyad fārsi sohbat konid.) – "You must speak Persian." Here, باید establishes the obligation. The subjunctive verb صحبت کنید (sohbat konid), meaning "(that you) speak," is derived from the compound verb صحبت کردن (sohbat kardan, to speak). Its ending -ید (-id) clearly indicates the second person plural/formal subject شما (shomā).او (u, he/she), باید would remain identical, but the verb would become صحبت کند (sohbat konad). The core message remains consistent across subjects, highlighting the distinct roles of bāyad and the subjunctive verb.باید precedes a subjunctive verb, it elevates this potential action to a required or highly recommended state. The بـِ (be-) prefix, characteristic of the subjunctive, indicates this non-factual nature, distinguishing it from the present indicative tense, which describes factual, ongoing, or habitual actions.باید implies a strict "must" or a softer "should" often depends on context, intonation, and accompanying vocabulary. For example, شما باید داروهایتان را بخورید. (shomā bāyad dāruhāyetān rā bokhorid.) – "You must take your medicine" (strong obligation), versus شما باید بیشتر استراحت کنید. (shomā bāyad bīshtar esterāhat konid.) – "You should rest more" (strong recommendation).Formation Pattern
باید (bāyad) is highly consistent and follows a clear pattern. Once you internalize this structure, you can apply it to nearly any verb.
[Subject (optional)] + باید (bāyad) + [Main Verb in Present Subjunctive]
بـِ (be-): This prefix is the hallmark of the subjunctive mood and is generally attached to the beginning of the verb's present stem. It indicates the non-factual, potential nature of the action. Example: For رفتن (raftan, to go), the present stem is رو (rav), so the prefix creates بـِرو-.
بـِ prefix:
بـِ (be-), اَ (a-), اُ (o-), آ (ā-), or و (v-), the subjunctive prefix بـِ is often omitted or morphs for phonetic ease. For example, آمدن (āmadan, to come) has the present stem آی (āy), but its subjunctive forms like بیایم (biyāyam, that I come) or بیایی (biyāyī, that you come) where بـِ merges or precedes. افتادن (oftādan, to fall) usually forms بیفتم (biyoftam), not ببیفتم. Verbs like بردن (bordan, to take/carry) with stem بر (bar) usually take the prefix: ببرم (bebaram). There are some complexities here which require practice.
کار کردن (kār kardan, to work), صحبت کردن (sohbat kardan, to speak)), the بـِ prefix only attaches to the light verb component (e.g., کردن, شدن, دادن). For example, باید کار بکنم (bāyad kār bokonam).
بـِ prefix is very frequently omitted from the light verbs کردن (kardan, to do) and شدن (shodan, to become) in compound constructions. So, while باید کار بکنم is grammatically correct and formal, the much more common and natural colloquial form is باید کار کنم (bāyad kār konam). This is a strong tendency in spoken Persian you should be aware of.
رفتن (raftan, to go) → Present Stem: رو (rav)
خوردن (khordan, to eat) → Present Stem: خور (khor)
دیدن (dīdan, to see) → Present Stem: بین (bīn)
بـِ prefix, if present) and indicate the subject's person and number. These endings are identical to those used for the simple present indicative tense:
بـِرو-) |
man, I) | ـم (-am) | بروم (beravam) |
to, you) | ـی (-ī) | بروی (beravī) |\
u, he/she/it)| ـد (-ad) | برود (beravad) |\
mā, we) | ـیم (-īm)| برویم (beravīm) |\
shomā, you)| ـید (-īd)| بروید (beravīd) |\
ānhā, they)| ـند (-and)| بروند (beravand) |
رفتن (raftan, to go) with باید:
man) | باید بروم | bāyad beravam | باید برم | bāyad beram |\
to) | باید بروی | bāyad beravī | باید بری | bāyad berī |\
u) | باید برود | bāyad beravad | باید بره | bāyad bere |\
mā) | باید برویم | bāyad beravīm | باید بریم | bāyad berīm |\
shomā) | باید بروید | bāyad beravīd | باید برید | bāyad berīd |\
ānhā) | باید بروند | bāyad beravand | باید برن | bāyad beran |
من باید این کتاب را بخوانم. (man bāyad īn ketāb rā bekhānam.) – "I must read this book." (خواندن (khāndan), stem خوان (khān))
او باید به خانه برگردد. (u bāyad be khāne bargardad.) – "He/She must return home." (برگشتن (bargashtan), stem برگرد (bargard))
ما باید هر روز تمرین کنیم. (mā bāyad har rūz tamrīn konīm.) – "We should practice every day." (Compound verb تمرین کردن (tamrīn kardan), light verb کردن (kardan), stem کن (kon), colloquial omission of بـِ).
When To Use It
باید (bāyad) is remarkably versatile, allowing you to convey a spectrum of meanings from strict obligation to gentle suggestion. The precise interpretation often hinges on the context, your intonation, and any accompanying adverbs or phrases. Understanding these nuances is key to effective communication in Persian.- Expressing Strong Necessity or Obligation ("Must," "Have to")
bāyad. It applies to rules, laws, moral imperatives, or situations where an action is strictly required. It implies a lack of choice.شما باید قوانین را رعایت کنید.(shomā bāyad qavānīn rā re'āyat konīd.) – "You must observe the rules."من باید امروز کارم را تمام کنم.(man bāyad emrūz kāram rā tamām konam.) – "I have to finish my work today."مسافران باید قبل از پرواز حاضر باشند.(mosāferān bāyad qabl az parvāz hāzer bāshand.) – "Passengers must be present before the flight."
- Expressing Strong Recommendation or Advisability ("Should")
باید can also soften to imply a strong recommendation, advice, or what is considered appropriate or sensible. In these cases, there is often more implied choice, though the speaker strongly suggests the action.تو باید بیشتر درس بخوانی.(to bāyad bīshtar dars bekhānī.) – "You should study more."آنها باید به یک پزشک مراجعه کنند.(ānhā bāyad be yek pezeshk morāje'e konand.) – "They should see a doctor."ما باید به یکدیگر کمک کنیم.(mā bāyad be yekdīgar komak konīm.) – "We should help each other."
- Expressing Probability or Logical Deduction ("Must be," "Should be")
bāyad can also be used to express a strong likelihood or a logical conclusion, similar to "must be" or "should be" in English. This usage implies that, given the circumstances, something is almost certainly true.او باید در خانه باشد.(u bāyad dar khāne bāshad.) – "He/She must be at home (given the time/situation)."این کار باید سخت باشد.(īn kār bāyad sakht bāshad.) – "This work must be difficult."آنها باید الان رسیدهباشند.(ānhā bāyad alān resīde bāshand.) – "They should have arrived by now." (Combinesbāyadwith a perfect subjunctive, indicating a past probability).
- Negative Obligation (
نباید-nabāyad)
نـَ (na-) directly to باید, forming نباید (nabāyad). The main verb that follows remains in the present subjunctive, without its own negative prefix.- Pattern:
[Subject (optional)] + نباید (nabāyad) + [Main Verb in Present Subjunctive] شما نباید اینجا سیگار بکشید.(shomā nabāyad īnjā sīgār bekeshīd.) – "You must not smoke here."او نباید دروغ بگوید.(u nabāyad dorūg begooyad.) – "He/She should not lie."
- Past Obligation/Regret (More Advanced -
باید میکردم-bāyad mīkardam)
bāyad can express past obligation or regret. This is formed by using bāyad followed by the imperfect subjunctive form of the verb (often identical to the past imperfect indicative but with the subjunctive بـِ prefix if possible).من باید دیروز به او زنگ میزدم.(man bāyad dīrūz be u zang mīzadam.) – "I should have called him/her yesterday." (Literally: "I must (that I was calling) him/her yesterday.")ما باید آن کار را انجام میدادیم.(mā bāyad ān kār rā anjām mīdādīm.) – "We should have done that work." This structure implies regret or a missed past opportunity/obligation.
Common Mistakes
باید (bāyad) can significantly accelerate your learning process. Many errors arise from directly mapping English grammar to Persian or from misapplying Persian verb conjugations.- Confusing Subjunctive with Indicative: A very frequent error is using the present indicative form of the main verb instead of the present subjunctive. Remember,
بایدalways demands the subjunctive. The present indicative uses theمیـ(mī-) prefix, while the subjunctive usesبـِ(be-) or its exceptions. - Incorrect:
من باید میروم.(man bāyad mīravam.) (Using present indicativeمیروم) - Correct:
من باید بروم.(man bāyad beravam.) (Using present subjunctiveبروم)
- Incorrect
بـِ(be-) prefix usage: - Omitting
بـِwhen required: Many learners forget theبـِprefix, especially with regular verbs. Example:من باید بخورم.becomesمن باید خورم. - Adding
بـِwhen not required: This often happens with compound verbs or verbs with certain initial sounds. For instance, in colloquial speech, addingبـِtoکردن(kardan) orشدن(shodan) in a compound verb afterbāyadis considered unnatural, though formally acceptable. E.g.,باید کار کنم(colloquial) vs.باید کار بکنم(formal, less common in speech).
- Using the Past Stem instead of the Present Stem: The subjunctive mood, like the present indicative, is built upon the verb's present stem. Using the past stem will result in an unintelligible or incorrect verb form.
- Incorrect:
من باید رفتم.(man bāyad raftam.) (Using past stemرفت) - Correct:
من باید بروم.(man bāyad beravam.) (Using present stemرو)
- Incorrect Personal Endings for the Subjunctive Verb: Ensure the personal ending of the subjunctive verb matches the subject's person and number precisely. These endings are the same as those for the present indicative.
- Incorrect:
او باید بروی.(u bāyad beravī.) (Using second person ending-یfor third person subject) - Correct:
او باید برود.(u bāyad beravad.) (Using third person ending-د)
- Incorrect Negation: Remember that for negative obligation, the negation
نـَ(na-) always attaches toباید, formingنباید(nabāyad). Do not negate the main verb itself. - Incorrect:
باید نروی.(bāyad naravī.) (Negating the main verbنروی) - Correct:
نباید بروی.(nabāyad beravī.) (Negatingنباید) - This distinction is crucial:
نباید برویmeans "You must not go," whileباید نروی(if it were grammatically valid, which it isn't in this context) would imply "It is necessary that you don't go," a very different and structurally incorrect thought.
- Overuse of Formal vs. Colloquial Forms: While formal Persian is useful for writing and certain official contexts, using overly formal verb endings (e.g.,
برومinstead ofبرم) in casual spoken conversation can sound stiff or unnatural. Strive to use colloquial contractions in everyday speech and formal conjugations in written or more formal settings.
Real Conversations
Understanding how باید (bāyad) functions in authentic Persian conversation goes beyond textbook examples. Here, we'll look at how native speakers use this structure in both formal and informal contexts, including typical colloquial contractions.
1. Giving Advice (Informal):
- Friend A: من خیلی خستهام. (man kheylī khaste-am.) – "I'm very tired."
- Friend B: باید زود بخوابی. (bāyad zūd bekhābī.) – "You should sleep early." (Colloquial بخوابی (bekhābī) from خوابیدن (khābīdan, to sleep). Formal would be بخوابید for شما or بخوابی for تو.)
- Note: The informal تو (to) is implied, and the verb بخوابی uses the informal second-person singular ending.
2. Stating a Necessity (Formal/Work Context):
- Colleague 1: آیا گزارش آماده است؟ (āyā gozāresh āmāde ast?) – "Is the report ready?"
- Colleague 2: نه، هنوز نه. ما باید تا فردا آن را تکمیل کنیم. (na, hanūz na. mā bāyad tā fardā ān rā takmīl konīm.) – "No, not yet. We must complete it by tomorrow." (Uses formal تکمیل کنیم (takmīl konīm) for ما).
3. Expressing Personal Obligation/Resolve (Colloquial):
- امروز باید برم بانک. (emrūz bāyad beram bānk.) – "Today I have to go to the bank." (Notice the colloquial contraction برم (beram) from بروم (beravam). This is extremely common in spoken Persian.)
- من نباید اینقدر شیرینی بخورم. (man nabāyad īneqadr shīrīnī bokhoram.) – "I shouldn't eat so many sweets." (Colloquial اینقدر for این قدر, and نباید for negative obligation).
4. Setting a Rule/Instruction (General):
- همه باید فرمها را امضا کنند. (hame bāyad formhā rā emzā konand.) – "Everyone must sign the forms." (The بـِ prefix is naturally omitted in امضا کنند from امضا کردن due to کردن as a light verb and colloquial tendency).
5. Probability/Assumption (Casual):
- الان ساعت دوازدهه، او باید رسیده باشه. (alān sā'at davāzdah-e, u bāyad resīde bāshe.) – "It's twelve o'clock now, he/she should have arrived." (Here, bāyad + perfect subjunctive, using colloquial باشه (bāshe) for باشد (bāshad).)
6. Texting/Social Media:
In informal digital communication, bāyad is used frequently, often with even more abbreviated colloquial forms:
- فردا باید ببینمت! (fardā bāyad bebinamet!) – "Tomorrow I have to see you!" (ببینمت is a contracted form of ببینم تو را, 'I see you').
- نباید فراموش کنیم. (nabāyad farāmūsh konīm.) – "We shouldn't forget."
These examples demonstrate bāyad's flexibility. Pay attention to the subtle differences in the subjunctive verb endings and pronunciation to discern formality and specific subject, even when pronouns are omitted.
Quick FAQ
باید (bāyad) that can clarify common points of confusion.- Does
باید(bāyad) change for different subjects?
باید is an impersonal modal particle and always remains the same, regardless of who is performing the action. It is the main verb that follows باید that conjugates for person and number in the present subjunctive mood.من باید بروم (I must go) and آنها باید بروند (They must go) both use the unchanging باید.- Is there a direct past tense equivalent of
باید? How do I say "had to" or "should have"?
باید itself. To express past obligation or regret, you typically use باید followed by the imperfect subjunctive (or past imperfect indicative, structurally similar for many verbs). For "had to," you might also use مجبور بودم (majbūr būdam, I was obliged/forced).باید + imperfect subjunctive. For example, من باید میرفتم. (man bāyad mīraftam.) – "I should have gone / I had to go." (Literally: "I must (that I was going)").- What's the difference between
باید(bāyad) andلازم است(lāzem ast)?
باید is the more common and direct way to express "must" or "should." لازم است (literally "it is necessary") is slightly more formal and often implies a factual or objective necessity. While باید pairs with a subjunctive verb, لازم است can take either a subjunctive clause (e.g., لازم است که بروم – "It is necessary that I go") or an infinitive (e.g., لازم است رفتن – "Going is necessary").باید is overwhelmingly preferred.- Can
باید(bāyad) always be translated as "should"?
باید can convey "should." The force of the obligation—whether it's a strong "must" or a softer "should"—is often determined by the surrounding context, the speaker's intonation, and the nature of the action itself. For instance, advising a friend (e.g., باید دکتر بروی – "You should go to the doctor") typically implies "should," while a command from a superior (e.g., باید این کار را انجام دهی – "You must do this work") implies "must."- How do I say "I don't have to" in Persian?
نباید (nabāyad) means "must not" or "should not" (a prohibition). To express "don't have to" (lack of obligation), you typically use لازم نیست (lāzem nist, it is not necessary) or نیازی نیست (niyāzī nist, there is no need).که (ke)). For example, لازم نیست که بروم. (lāzem nist ke beravam.) – "I don't have to go." It is a common mistake to use نباید for "don't have to," but it carries the meaning of prohibition instead. نباید بروم means "I must not go."- Are there other ways to express obligation in Persian?
مجبور بودن(majbūr būdan): To be obliged/forced (e.g.,من مجبورم بروم.– "I am forced to go.")وظیفه داشتن(vazīfe dāshtan): To have a duty (e.g.,وظیفه دارم که بگویم.– "I have a duty to say.")الزام داشتن(elzām dāshtan): To have an obligation (more formal).
باید and نباید is sufficient for most communicative needs.Subjunctive Conjugation (after Bāyad)
| Person | Pronoun | Verb (Raftan - to go) | Translation |
|---|---|---|---|
|
1st Sing.
|
من
|
بروم
|
I go
|
|
2nd Sing.
|
تو
|
بروی
|
You go
|
|
3rd Sing.
|
او
|
برود
|
He/She goes
|
|
1st Plur.
|
ما
|
برویم
|
We go
|
|
2nd Plur.
|
شما
|
بروید
|
You go
|
|
3rd Plur.
|
آنها
|
بروند
|
They go
|
Meanings
The word 'bāyad' is an impersonal modal particle used to express obligation, necessity, or advice. It remains unchanged regardless of the subject.
Strong Obligation
Expressing that something is required or mandatory.
“باید این کار را انجام دهی.”
“باید به مدرسه بروم.”
Advice/Recommendation
Suggesting that something is a good idea (should).
“باید بیشتر استراحت کنی.”
“باید این فیلم را ببینی.”
Prohibition/Negative Advice
Using 'nabāyad' to say something must not or should not be done.
“نباید اینجا سیگار بکشی.”
“نباید دیر بیایی.”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
Bāyad + Subjunctive
|
باید بروم (I must go)
|
|
Negative
|
Nabāyad + Subjunctive
|
نباید بروم (I shouldn't go)
|
|
Question
|
Bāyad + Subjunctive + ?
|
باید بروم؟ (Must I go?)
|
|
Short Answer
|
Bāyad
|
باید (Yes, you must)
|
|
Negative Answer
|
Nabāyad
|
نباید (No, you shouldn't)
|
Formality Spectrum
باید تشریف ببرید. (Leaving a party)
باید بروید. (Leaving a party)
باید بری. (Leaving a party)
باید بزنی به چاک. (Leaving a party)
The Bāyad Universe
Obligation
- باید انجام دهی You must do it
Advice
- باید استراحت کنی You should rest
Prohibition
- نباید اینجا باشی You shouldn't be here
Examples by Level
باید بروم.
I must go.
باید بخوابم.
I must sleep.
باید غذا بخوری.
You must eat.
نباید بروی.
You shouldn't go.
باید این کتاب را بخوانی.
You should read this book.
آیا باید اینجا منتظر بمانم؟
Should I wait here?
باید زودتر به خانه برگردیم.
We must return home earlier.
نباید به او دروغ بگویی.
You shouldn't lie to him.
باید سعی کنی که آرام باشی.
You should try to be calm.
باید این پروژه را تا فردا تمام کنیم.
We must finish this project by tomorrow.
نباید اجازه بدهی که این فرصت را از دست بدهد.
You shouldn't let him miss this opportunity.
باید بدانی که این کار آسان نیست.
You should know that this is not easy.
باید در نظر داشته باشی که زمان محدود است.
You should keep in mind that time is limited.
باید تا الان رسیده باشد.
He must have arrived by now.
نباید چنین اشتباهی را دوباره تکرار کنیم.
We must not repeat such a mistake again.
باید به این نکته توجه کرد.
One must pay attention to this point.
باید اعتراف کنم که انتظارش را نداشتم.
I must admit I didn't expect it.
باید دید که نتیجه چه خواهد شد.
It remains to be seen what the result will be.
نباید از یاد برد که تاریخ تکرار میشود.
One must not forget that history repeats itself.
باید به هر قیمتی که شده موفق شویم.
We must succeed at any cost.
باید گفت که این رویکرد چندان کارآمد نیست.
It must be said that this approach is not very efficient.
باید که در این راه استقامت ورزید.
One must persevere on this path.
نباید که از این موضوع غافل ماند.
One must not remain oblivious to this issue.
باید که حقیقت را آشکار کرد.
The truth must be revealed.
Easily Confused
Both mean 'necessary', but learners use them interchangeably.
Both imply 'must'.
Learners use indicative after 'bāyad'.
Common Mistakes
باید میروم
باید بروم
بایدم بروم
باید بروم
باید رفتن
باید بروم
نباید رفت
نباید بروی
باید او میرود
باید او برود
باید که رفت
باید بروم
باید من بروم
باید بروم
باید کار انجام داد
باید کار را انجام دهی
باید میبودی
باید باشی
باید که میرفت
باید میرفت
باید که انجام شده باشد
باید انجام شده باشد
باید انجام میدادم
باید انجام میدادم
باید که بشود
باید بشود
Sentence Patterns
باید ___ کنم.
آیا باید ___؟
نباید ___ انجام بدهی.
باید به این نکته ___.
Real World Usage
باید زودتر بیای!
باید بگویم که تجربه زیادی دارم.
باید بلیط را از کجا بگیرم؟
باید آدرس را دقیق بنویسید.
باید این عکس را ببینید!
باید به این موضوع اشاره کرد.
The Magic 'Bāyad'
bāyad NEVER changes. Don't add any endings to it. Only the second verb changes!Don't Forget the 'Be-'
be- on the main verb. Without it, the sentence will sound very strange to native speakers.Compound Verb Shortcut
shārj kardan, the be- prefix is often dropped. Just say shārj konam instead of shārj bokonam for a more natural sound.Smart Tips
Use 'bāyad' with a soft tone to sound like a friend.
Use 'bāyad' with formal verb endings.
Use 'bāyad' to state logical conclusions.
Use 'bāyad' with past subjunctive structures.
Pronunciation
Bāyad
The 'ā' is a long vowel, like 'a' in 'father'.
Rising for questions
باید بروم؟ ↑
Asking for permission or confirmation.
Memorize It
Mnemonic
Bāyad is like a 'Buy-it' reminder: You must buy it!
Visual Association
Imagine a giant neon sign that says 'BĀYAD' pointing at a task you need to finish. Every time you see the sign, you feel the urge to start the action.
Rhyme
Bāyad is the word you need, to do the action with speed.
Story
Ali woke up and saw a note on his mirror: 'Bāyad'. He knew he had to brush his teeth, so he said 'Bāyad mesvāk bezanam'. Then he saw his keys and said 'Bāyad beravam'. He realized 'Bāyad' was the key to his daily routine.
Word Web
Challenge
Write down 5 things you must do today using 'bāyad' + verb.
Cultural Notes
In Tehran, 'bāyad' is often used to give strong advice that is culturally expected.
In formal writing, 'bāyad' is used to state universal truths or moral duties.
In casual speech, 'bāyad' is often shortened or emphasized to show urgency.
Comes from the Middle Persian 'bāyestan' (to be necessary).
Conversation Starters
امروز چه کاری باید انجام بدهی؟
آیا باید همیشه به حرف دیگران گوش کرد؟
برای یادگیری فارسی، چه کاری باید کرد؟
به نظر تو، در جامعه امروز چه چیزی باید تغییر کند؟
Journal Prompts
Common Mistakes
Test Yourself
باید (رفتن) ____.
Which is correct?
Find and fix the mistake:
باید او میخورد.
باید بروم.
A: باید زود بروم. B: ____.
باید / بخوری / غذا
Which is subjunctive?
Match each item on the left with its pair on the right:
Score: /8
Practice Exercises
8 exercisesباید (رفتن) ____.
Which is correct?
Find and fix the mistake:
باید او میخورد.
باید بروم.
A: باید زود بروم. B: ____.
باید / بخوری / غذا
Which is subjunctive?
باید بروم
Score: /8
Practice Bank
10 exercisesما باید به او کمک ___.
باید امروز کار میکنم.
باید / بزنی / من / به / زنگ
I must not forget.
Choose the correct sentence:
Match the following phrases:
آیا باید این را ___؟
You shouldn't go.
علی باید میخوابد.
We must not tell anyone.
Score: /10
FAQ (8)
Yes, but it's more complex. Usually, you use 'bāyad' + 'bude bāshad' for past deduction.
Usually, but it can be moved for emphasis.
No, it is invariant.
Your sentence will sound incorrect to native speakers.
It is neutral and used in all registers.
Yes, context determines if it's 'must' or 'should'.
Use 'majbur budam' or 'bāyad ... mikardam'.
The 'na-' prefix is standard for negation in Persian.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Deber / Tener que
Persian 'bāyad' never changes form.
Devoir
Persian uses a particle, not a verb.
Müssen / Sollen
Persian lacks person-based conjugation for the modal.
~nakereba naranai
Persian uses a simple particle.
Yajib an
Arabic requires 'an' + subjunctive.
Yīnggāi / Bìxū
Persian triggers the subjunctive mood.
Learning Path
Prerequisites
Related Grammar Rules
Formal Future Tense: I will go (khāham raft)
Overview The formal future tense in Persian, known as `زمان آینده مطلق` (`zamān-e āyande-ye motlaq`) or `زمان آینده ساده...
The 'Past before the Past' (Past Perfect / گذشته بعید)
Overview The Persian Past Perfect tense, known as **گذشته بعید (gozashteh-ye ba'id)**, is a compound tense essential fo...
The Rebel Verb: 'To Have' in Present Tense (No mi- prefix!)
Overview In Persian, the verb `داشتن` (`dāshtan`) meaning “to have” or “to possess” stands as a notable exception within...
Persian Ongoing Actions: The 'Having' Auxiliary (dāštan)
Overview The Persian verb system distinguishes between habitual actions and actions in progress. While the ubiquitous pr...
Persian Subjunctive: Doubt & Desire (مضارع التزامی)
Overview The Persian Subjunctive Mood, known as `مضارع التزامی` (`mozāre'-e eltezāmi`), is a cornerstone of advanced Per...
