Formal:
* Que faites-vous ? (pronounced "kuh feht voo?") - This is the most formal way to ask the question.
* Qu'est-ce que vous faites ? (pronounced "kehskuh voo feht?") - This is slightly less formal than the first option.
Informal:
* Tu fais quoi ? (pronounced "too feh kwah?") - This is the most informal way to ask the question. It is used with friends and family.
* Qu'est-ce que tu fais ? (pronounced "kehskuh too feh?") - This is slightly less informal than the previous option. It can be used with friends, family, and acquaintances.
Example:
Let's say you're speaking to a friend and want to know what they're doing. You could say:
* Tu fais quoi ? (What are you doing?)
Or, if you're speaking to a stranger or someone you don't know well, you could say:
* Que faites-vous ? (What are you doing?)
It's important to choose the appropriate level of formality based on the situation and the person you're speaking to.