French Conditional Tense: How to Form It and When to Actually Use It
Learn how to form the French conditional tense, when to use it, and which verbs have irregular stems, with clear examples and a quick-reference table.
The French conditional tense lets you talk about hypothetical situations, polite requests, and things that would happen under certain conditions. It covers roughly the same ground as 'would' in English. The good news: it is one of the easiest tenses to form in French because you build it on the infinitive, and you already know the endings from the imparfait.
How to Form the Conditional
For regular verbs, take the infinitive and add the imparfait endings: -ais, -ais, -ait, -ions, -iez, -aient. For -re verbs, drop the final e before adding the endings.
| Pronoun | parler (to speak) | finir (to finish) | vendre (to sell) |
|---|---|---|---|
| je | parlerais | finirais | vendrais |
| tu | parlerais | finirais | vendrais |
| il/elle | parlerait | finirait | vendrait |
| nous | parlerions | finirions | vendrions |
| vous | parleriez | finiriez | vendriez |
| ils/elles | parleraient | finiraient | vendraient |
The endings are identical for every verb, regular or irregular. That is what makes this tense manageable once you know the stems.
Irregular Stems You Need to Know
About 20 verbs use a different stem instead of the infinitive. These are the same verbs that are irregular in the future tense, so if you know one, you already know the other. The stem always ends in -r.
| Verb | Conditional stem | Example (je) |
|---|---|---|
| être | ser- | je serais |
| avoir | aur- | j'aurais |
| aller | ir- | j'irais |
| faire | fer- | je ferais |
| pouvoir | pourr- | je pourrais |
| vouloir | voudr- | je voudrais |
| savoir | saur- | je saurais |
| venir | viendr- | je viendrais |
| voir | verr- | je verrais |
| devoir | devr- | je devrais |
| tenir | tiendr- | je tiendrais |
| envoyer | enverr- | j'enverrais |
Prioritise the top six. They appear constantly in everyday French and in exam listening passages. If you are working through grammar lessons sorted by level, you can find them organised by frequency in the Fréquence lesson library.
When Do You Actually Use the Conditional?
There are four main situations where French speakers reach for the conditional.
- Hypothetical situations with si (if) clauses. Si j'avais le temps, je voyagerais plus. (If I had the time, I would travel more.) The rule: si + imparfait, then conditional.
- Polite requests and softer questions. Je voudrais un café, s'il vous plaît. Pourriez-vous m'aider? This is the single most common use in daily life.
- Reported or unconfirmed information. Le gouvernement annoncerait de nouvelles mesures demain. (The government would reportedly announce new measures tomorrow.) Journalists use this constantly.
- Future in the past. Il a dit qu'il viendrait. (He said he would come.) The conditional acts as the future tense when you are narrating from a past perspective.
The Si Clause: A Common Source of Mistakes
English speakers often put the conditional in both halves of an if-then sentence. French does not work that way.
| Clause type | Tense to use | Example |
|---|---|---|
| Si clause (the condition) | Imparfait | Si j'avais de l'argent... |
| Result clause (what would happen) | Conditionnel présent | ...j'achèterais une voiture. |
| Wrong version (do not do this) | Never conditional after si | Si j'aurais = incorrect |
The mistake si + conditional is extremely common among B1 and B2 learners. Fixing it is one of the fastest ways to sound more fluent in writing and speech.
Conditional vs. Other Tenses: Quick Comparison
It helps to see the conditional alongside the tenses it is most often confused with.
| Tense | Use | Example |
|---|---|---|
| Futur simple | Definite future plans | J'irai en France l'été prochain. |
| Conditionnel présent | Hypothetical or polite | J'irais si j'avais l'argent. |
| Imparfait | Habitual or ongoing past | J'allais en France chaque été. |
| Subjonctif | Doubt, emotion, obligation | Il faut que j'aille en France. |
The conditional and the futur simple look similar because they share the same stems for irregular verbs. The difference is the ending. Future uses -ai, -as, -a, -ons, -ez, -ont. Conditional uses the imparfait endings.
The Conditionnel Passé: What Would Have Happened
There is also a compound form: conditionnel passé. It expresses what would have happened but did not. Form it with the conditional of avoir or être plus the past participle.
- J'aurais mangé si j'avais eu faim. (I would have eaten if I had been hungry.)
- Elle serait venue si elle avait pu. (She would have come if she had been able to.)
- Nous aurions fini plus tôt. (We would have finished earlier.)
This form appears often in TCF Canada and TEF Canada reading and listening sections, usually in literary or journalistic contexts. If you are preparing for those exams, add it to your active review list. You can check the test format breakdown on the immigration French exam guide.
How to Practise the Conditional Efficiently
Recognition comes before production. Start by noticing the conditional in texts and podcasts before trying to produce it yourself.
- Read French news articles and flag every verb ending in -rait or -raient. These are almost always conditional or future.
- Practise the 12 irregular stems until you can recall them in under two seconds. Use spaced repetition for the stems, not full conjugation tables.
- Write three si-clause sentences about your own life each day. Make them personal so they stick.
- Listen for je voudrais, je pourrais, and ce serait in podcasts and films. These are your first signals that conditional is being used.
Spaced repetition works particularly well for irregular verb stems because they are finite and formulaic. The verb SRS tool at Fréquence lets you drill stems and full conjugations in context so you are not just memorising tables in isolation.
FAQ
What is the difference between the French conditional and the subjunctive?
The conditional expresses what would happen under certain conditions. The subjunctive expresses doubt, emotion, necessity, or a subjective reaction. Both are triggered by specific contexts, but they are not interchangeable. For example, je voudrais que tu viennes uses both: voudrais is conditional (polite wish), viennes is subjunctive (expressing the wish about someone else).
Can I use the conditional to be polite in French?
Yes, and you should. Je voudrais is always more polite than je veux in a shop or restaurant. Pourriez-vous is softer than pouvez-vous. French speakers notice when you use the conditional for requests, and it makes a real difference in how you come across in professional or formal settings.
Is the French conditional tested on TCF or TEF Canada?
Yes. It appears in reading and listening comprehension at B1 and above, and it is expected in writing and speaking production from B1 onward. The conditionnel passé shows up more at B2 and C1. If your target score is B2 or higher, make sure you can both recognise and produce both forms accurately.
How long does it take to learn the French conditional?
Most learners can form the regular conditional correctly within a few hours of focused practice. Irregular stems take a week or two of spaced repetition to automate. Using it naturally in speech, especially the si-clause structure, takes longer because it requires real-time tense selection. Budget two to four weeks of active practice before it feels automatic.
If the conditional is still shaky after working through this guide, Fréquence (frequence.academy) has grammar lessons that cover it in context, at every level from A2 upward. The first three lessons are free and you do not need a credit card to start. For extra practice between study sessions, follow @frequenceacademy on Instagram and YouTube where short, free French tips go up regularly.
Drill Conditional Verb Stems with Spaced Repetition →