Futur proche or futur simple? Which future to pick

B1

Not how to form them, but which to choose: futur proche (aller + infinitive) = near / decided / visible sign; futur simple (-rai) = distant / formal / prediction. Same sentence, different nuance. TCF trap: quand/dès que + futur simple, but si + present.

🎯 This page settles which future to pick, not how to form it. For conjugation (endings, irregular stems, conditional), see theFuture & conditionaloverview. Here: the choice + the nuance + the clause traps.

The “how sure / how soon” test

TenseFormationWhen to useExample
futur prochealler (present) + infinitivenear / decided / visible sign / speechJe vais t'appeler ce soir.
futur simpleendings -rai -ras -radistant / prediction / formal / promiseUn jour, je parlerai français couramment.

👉 The nearer and surer it is, the more you use proche: Il va pleuvoir (it's coming) · Il pleuvra demain (forecast).

Same event, two nuances ⚡

Both are correct, but the meaning shifts:

Situationfutur proche (imminent / sure)futur simple (distant / prediction)
fallingIl va tomber! (any second)Il tombera (prediction)
marriageJe vais me marier (soon)Je me marierai un jour (someday)
matchOn va gagner (it's done)On gagnera (we believe)
replyJe vais te répondre (right now)Je te répondrai (promise)

In speech almost everything is proche; in writing and for plans, use simple.

The clause traps (TCF favorites) ⚠️

① quand / dès que / lorsque + future → futur simple

English uses the present here (“when you arrive”), French needs the future:

  • Quand tu arriveras, appelle-moi.
  • Je t'appellerai dès que j'arriverai.
  • Quand tu arrives

② si (condition) → present, never future

  • Si tu viens, on ira au ciné.
  • Si tu viendras

🔑 After quandfuture; after sipresent.

③ visible sign → futur proche

Regarde le ciel, il va pleuvoir.

④ prediction · weather · timetable · writing → futur simple

Le train partira à 8h. · Il fera beau demain.

Memory shortcut

Near / decided / signfutur proche (aller + inf.); distant / formal / predictionfutur simple (-rai). After quandfuture, after sipresent.