How do you say i will return in french?

There are a few ways to say "I will return" in French, depending on the context and formality:

Formal:

* Je reviendrai. (This is the most literal and common translation.)

* Je retournerai. (This is more specific to physically returning to a place.)

Informal:

* Je reviens. (This is a more casual way to say it.)

* Je vais revenir. (This is also a more informal option.)

You can also use the future tense with the verb "revenir" for a more specific time frame:

* Je reviendrai demain. (I will return tomorrow.)

* Je reviendrai dans une heure. (I will return in an hour.)

The best translation for you will depend on the specific situation.