Hindi often uses the subjunctive in an अगर...तो “if...then” sentence when the condition is left open rather than asserted or confidently predicted. In अगर तुम कल आओ, तो हम साथ चलेंगे, the arrival is a live possibility. The form is not a special “conditional tense”: it is the ordinary person-number subjunctive placed inside a conditional frame.
The open-condition pattern
The protasis—the if-clause—contains अगर plus a subjunctive predicate. The result clause may contain a future, an imperative, another subjunctive, or any form suited to the intended result.
अगर तुम कल आओ, तो हम साथ चलेंगे।
agar tum kal āo, to ham sāth caleṅge.
If you come tomorrow, we will go together.
अगर सीमा आए, तो उसे यह फ़ाइल दे देना।
agar sīmā āe, to use yah fāil de denā.
If Seema comes, give her this file.
अगर वे तैयार हों, तो हम बैठक शुरू कर देंगे।
agar ve taiyār hoṃ, to ham baiṭhak śurū kar deṅge.
If they are ready, we will start the meeting.
The subjunctive does not say that the condition is unlikely. It says that the speaker is treating it as a possibility whose realization matters to the consequence. Context may make that possibility very realistic.
Compact paradigm: आना in an अगर-clause
Simple subjunctive endings mark person and number, including honorific number, but not gender.
| Subject class | Subjunctive | Conditional fragment |
|---|---|---|
| मैं | आऊँ | अगर मैं आऊँ... |
| तू / वह / यह | आए | अगर वह आए... |
| हम | आएँ | अगर हम आएँ... |
| तुम | आओ | अगर तुम आओ... |
| आप / वे / ये | आएँ | अगर आप आएँ... |
अगर रवि जी आएँ, तो उन्हें सामने बैठाइएगा।
agar ravi jī āẽ, to unheṃ sāmne baiṭhāiegā.
If Mr. Ravi comes, please seat him at the front.
अगर दोनों लड़कियाँ जीतें, तो वे अगले दौर में जाएँगी।
agar donoṃ laṛkiyā̃ jīteṃ, to ve agle daur meṃ jāẽgī.
If both girls win, they will go to the next round.
रवि जी is one person, but respect triggers plural/honorific आएँ. Feminine plural लड़कियाँ likewise takes plural जीतें, but the subjunctive ending itself is not feminine; gender appears later in future जाएँगी.
अगर, यदि, and तो
अगर is neutral across everyday conversation and ordinary writing. यदि is (formal) and especially common in instructions, policies, and academic or administrative prose. तो clearly marks the consequence and is highly frequent, but it can be omitted when the relationship is short and unmistakable.
यदि आवेदन अधूरा हो, तो विभाग उसे लौटा सकता है।
yadi āvedan adhūrā ho, to vibhāg use lauṭā saktā hai.
If the application is incomplete, the department may return it.
अगर तुम्हें समय मिले, मुझे फ़ोन करना।
agar tumheṃ samay mile, mujhe fon karnā.
If you get time, call me.
In the second example, समय is the grammatical subject of मिले; तुम्हें is the recipient/experiencer. English instead makes “you” its subject. Omitting तो is natural in this short conversational instruction.
What can appear in the result clause?
The consequence is not required to be future. An instruction commonly uses an imperative or an infinitive functioning as a directive; a proposal may use the subjunctive.
अगर रवि फ़ोन करे, तो मुझे बता देना।
agar ravi fon kare, to mujhe batā denā.
If Ravi calls, let me know.
अगर कोई सवाल हो, तो पूछें।
agar koī savāl ho, to pūcheṃ.
If there is a question, please ask.
अगर ट्रेन देर से आए, तो क्या हम टैक्सी लें?
agar ṭren der se āe, to kyā ham ṭaiksī leṃ?
If the train is late, shall we take a taxi?
पूछें in the second example is a polite (formal) jussive-style instruction, common on notices or in organized settings. The last example has subjunctive in both clauses: आए leaves the condition open, and लें asks for a joint decision.
Subjunctive, future, and perfective are real contrasts
Compare three natural conditions:
| Form in the if-clause | Typical viewpoint | Example opening |
|---|---|---|
| subjunctive | open possibility | अगर बारिश हो... |
| future | prediction about what will happen | अगर बारिश होगी... |
| perfective | bounded trigger treated as realized before the result | अगर बारिश हुई... |
अगर बारिश हो, तो कार्यक्रम अंदर रखेंगे।
agar bāriś ho, to kāryakram andar rakheṅge.
If it should rain, we will hold the event indoors.
अगर बारिश हुई, तो कार्यक्रम अंदर रखेंगे।
agar bāriś huī, to kāryakram andar rakheṅge.
If it rains, we will hold the event indoors.
The English translations overlap, but the Hindi viewpoint differs. The subjunctive हो suspends commitment; perfective हुई packages the rain as the completed trigger. Future होगी is also possible when the speaker is making a prediction, as explained on future in conditional clauses.
Negative conditions: न and नहीं
Both न and नहीं occur with conditional subjunctives. Compact न is especially frequent in subordinate irrealis clauses and in careful writing. नहीं is fully natural in conversation when the negated proposition is explicit or contrastive. Neither should be treated as a universal register replacement for the other; मत is different because it negates commands.
अगर बारिश न हो, तो बाहर बैठेंगे।
agar bāriś na ho, to bāhar baiṭheṅge.
If it does not rain, we will sit outside.
अगर वह आज नहीं आए, तो क्या बैठक टाल दें?
agar vah āj nahīṃ āe, to kyā baiṭhak ṭāl deṃ?
If he does not come today, shall we postpone the meeting?
The first is a compact neutral condition. The second makes “not coming today” the explicit possibility under discussion; न आए would also be grammatical there.
Layered predicates and agreement controllers
The subjunctive ending goes on the final finite element of a layered predicate. Earlier pieces can show aspect, gender, or lexical meaning.
अगर सीमा पहुँच चुकी हो, तो उसे अंदर बुला लेना।
agar sīmā pahũc cukī ho, to use andar bulā lenā.
If Seema has arrived, call her inside.
Here पहुँच- supplies the lexical event, feminine चुकी marks completion and agrees with Seema, and हो is the third-person singular subjunctive auxiliary. The simple subjunctive is genderless, but an aspectual participle inside a larger subjunctive predicate is not.
अगर हमें दोनों रिपोर्टें आज भेजनी पड़ें, तो हम देर तक रुकेंगे।
agar hameṃ donoṃ riporṭeṃ āj bhejnī paṛeṃ, to ham der tak rukeṅge.
If we have to send both reports today, we will stay late.
The semantic actors are हमें, but feminine plural रिपोर्टें controls भेजनी पड़ें. The modal पड़ना therefore does not take a first-person form. This is precisely why Hindi predicates are best learned as layers—lexical infinitive + necessity modal + mood—rather than as one-word equivalents of English “we have to.”
This pattern is not the past counterfactual
अगर वह आए presents an open possibility. A past situation known not to have occurred uses a counterfactual construction such as अगर वह आया होता “if he had come.” The latter contains perfective आया plus counterfactual होता and has gender-number agreement; it is not merely a “past version” of आए.
Common Mistakes
Using an infinitive as the finite condition
❌ अगर तुम परसों आना, तो हम साथ चलेंगे।
Incorrect — आना is an infinitive, not the finite predicate required here.
✅ अगर तुम परसों आओ, तो हम साथ चलेंगे।
agar tum parsoṃ āo, to ham sāth caleṅge.
If you come the day after tomorrow, we will go together.
Treating a feminine plural subject as singular
❌ अगर लड़कियाँ जीते, तो वे अगले दौर में जाएँगी।
Incorrect — plural लड़कियाँ requires subjunctive जीतें.
✅ अगर लड़कियाँ जीतें, तो वे अगले दौर में जाएँगी।
agar laṛkiyā̃ jīteṃ, to ve agle daur meṃ jāẽgī.
If the girls win, they will go to the next round.
Adding a present auxiliary after a simple subjunctive
❌ अगर वह आए है, तो मुझे बताना।
Incorrect — simple subjunctive आए is already finite.
✅ अगर वह आए, तो मुझे बताना।
agar vah āe, to mujhe batānā.
If he comes, let me know.
Losing honorific number
❌ अगर आप कल आता, तो हम शुरू करेंगे।
Incorrect — आता has singular masculine agreement and habitual morphology incompatible with respectful आप in this open condition.
✅ अगर आप कल आएँ, तो हम शुरू करेंगे।
agar āp kal āẽ, to ham śurū kareṅge.
If you come tomorrow, we will begin.
Matching पड़ना to a dative experiencer
❌ अगर मुझे कल रुकना पड़ूँ, तो मैं संदेश भेजूँगा।
Incorrect — मुझे is dative and does not select first-person पड़ूँ.
✅ अगर मुझे कल रुकना पड़े, तो मैं संदेश भेजूँगा।
agar mujhe kal ruknā paṛe, to maĩ sandeś bhejū̃gā.
If I have to stay tomorrow, I will send a message.
Key Takeaways
- अगर/यदि + subjunctive presents a condition as open; it does not automatically mean unlikely.
- The subjunctive marks person, number, and honorificity, not gender.
- तो highlights the consequence but may be omitted in a short, transparent sentence.
- न and नहीं are both possible; the discourse contrast matters more than a simplistic formal/informal split.
- Future, perfective, and counterfactual forms in an if-clause contribute viewpoints different from the open subjunctive.
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Start learning Hindi →Related Topics
- Subjunctive overviewA2 — Recognize and use the Hindi subjunctive for desired, possible, contingent, and nonasserted situations without confusing it with the future.
- Present subjunctive personal endingsA2 — Form the Hindi simple subjunctive with -ूँ, -े, -ो, and -ें endings, including the major vowel-final stem patterns.
- Future in conditional clausesB2 — Use Hindi future forms naturally in अगर...तो conditions, and distinguish confident prediction from the less committed subjunctive pattern.
- Subjunctive versus future formsB1 — Distinguish Hindi subjunctive personal forms from futures that add -गा, -गी, or -गे, and choose between nonassertion and prediction.
- Open future conditionsB2 — Choose subjunctive, future, or perfective predicates in Hindi conditions whose future outcome remains genuinely open.
- अगर यदि and तो conditionsB1 — Build Hindi conditionals with conversational अगर or formal यदि, and use optional तो to mark the consequence clearly.