How do you say Im tired of this in French?

Here are a few ways to say "I'm tired of this" in French, with varying levels of formality and intensity:

Formal:

* J'en ai assez. (This is the most literal and common way to say it.)

* Je suis las/fatigué/e de cela. (This is more formal and emphasizes the feeling of being tired of it.)

Informal:

* J'en ai marre. (This is more colloquial and expresses frustration.)

* Je suis écoeuré/e de ça. (This is stronger and means "I'm disgusted by this.")

* Ça me gave le bourdon. (This is very informal and means "This is boring/annoying me.")

More specific:

* J'en ai assez de tes bêtises. (I'm tired of your nonsense.)

* Je suis fatigué/e de ces problèmes. (I'm tired of these problems.)

The best way to say it depends on the context and your relationship with the person you're talking to.