French Futur Simple: Conjugation and Uses
The futur simple is the formal future tense in French. It's used to express promises, predictions, long-term plans and instructions. It's essential for DELF B1 and B2, both in reading comprehension (news, articles) and written production (formal letters, essays). Learn everything about its formation and correct use here.
Forming the futur simple
The futur simple is formed by adding the endings -ai, -as, -a, -ons, -ez, -ont directly to the infinitive (unchanged). For -re verbs, the final -e of the infinitive is dropped before adding the endings. Examples: parler → je parlerai, tu parleras, il parlera, nous parlerons, vous parlerez, ils parleront. Finir → je finirai. Vendre → je vendrai (the -e is dropped).
Irregular verbs in the futur simple
Irregular verbs have a special stem to which the same endings are added. The most important ones: être → ser- (je serai), avoir → aur- (j'aurai), aller → ir- (j'irai), faire → fer- (je ferai), pouvoir → pourr- (je pourrai), vouloir → voudr- (je voudrai), venir → viendr- (je viendrai), voir → verr- (je verrai), savoir → saur- (je saurai), tenir → tiendr- (je tiendrai), envoyer → enverr- (j'enverrai), courir → courr- (je courrai).
Uses of the futur simple
The futur simple has several uses: (1) Predictions and forecasts: Demain, il neigera dans les Alpes (Tomorrow it will snow in the Alps). (2) Promises and commitments: Je t'appellerai ce soir, c'est promis (I'll call you tonight, I promise). (3) Formal instructions and orders: Vous remplirez ce formulaire (You will fill in this form). (4) Future facts in formal texts: La conférence aura lieu le 15 mars (The conference will take place on March 15th). (5) Conditional clauses with si (si + present → futur): Si tu viens, nous sortirons (If you come, we'll go out).
Futur simple vs Futur proche
The futur proche (aller + infinitive) expresses an immediate future or personal intention: Je vais partir (I'm about to leave). The futur simple expresses more distant predictions, objective facts, or formal promises: Je partirai la semaine prochaine (I will leave next week). In casual, everyday conversation, the futur proche is more common. In formal written texts (news, letters, essays), the futur simple is preferred — this mirrors, roughly, the difference between 'I'm going to leave' and 'I will leave' in English, though the French split by register is sharper.
The futur antérieur: for future actions completed before another
The futur antérieur (futur auxiliary + past participle) is used to express that a future action will have finished before another one. Formation: je serai/j'aurai + past participle. Key use for DELF B2: Quand tu arriveras, j'aurai déjà fini (When you arrive, I will already have finished). This tense appears frequently after quand, lorsque, dès que, aussitôt que with future meaning — this is exactly the English future perfect ('I will have finished'), but French requires it after these time conjunctions where English often slips into a simple future or present instead.
Practice exercises
1Conjuga: 'L'année prochaine, nous _____ (aller) en Espagne.'
2Which is correct? 'Si tu travailles bien, tu _____ (réussir).'
3Which tense expresses a formal promise? 'Je _____ votre commande demain.'
4Futur antérieur: 'Quand vous arriverez, elle _____ (partir).'
Common mistakes to avoid
- Forgetting the irregular stems: *je fairai instead of je ferai — you can't just add the endings to the full infinitive of faire.
- Confusing the futur simple with the conditionnel: je parlerai (futur) vs je parlerais (conditionnel) — the difference is only in the final sound/ending, easy to miss when it isn't a distinction English marks the same way.
- Using the futur proche where the futur simple is required in formal texts, especially in DELF B2 letters and essays.
- After quand/lorsque/dès que with future meaning, French requires the futur simple (not the present): Quand il viendra (not *quand il vient in a future context) — English typically uses the present here ('when he comes'), which leads learners to under-mark the French future.
DELF exam tips
- In DELF B2 formal letters, the futur simple gives a professional tone. Use it for commitments (je vous enverrai, nous vous contacterons).
- Memorize the most frequent irregular stems: être (ser-), avoir (aur-), aller (ir-), faire (fer-), pouvoir (pourr-), vouloir (voudr-).
- In reading comprehension, the futur simple in news articles signals predictions or official plans.
- The structure si + present + futur is one of the most heavily tested. Make sure you never use the conditionnel after si in a real conditional.