you're wrong
C'est simple voyons, soit j'ai raison, soit tu as tort.
It's simple, come on—either I'm right or you're wrong.
Je suis désolé, mais tu as tort.
I'm sorry, but you're wrong.
Je suis désolée, mais tu as tort.
I'm sorry, but you're wrong.
In my opinion, you’re wrong.
That's where you're wrong.
It’s clear that you’re wrong.
I think you're wrong.
I hope you're wrong.