Here are some possible meanings and their English translations depending on what you meant:
1. "You don't speak French"
* Formal: You don't speak French.
* Informal: You don't speak French.
2. "You are not French"
* Formal: You are not French.
* Informal: You're not French.
3. "You don't have French" (This is a bit awkward in English, but could mean you don't have a French passport, for example)
* Formal: You do not possess French citizenship.
* Informal: You don't have French citizenship.
Please clarify what you meant by "tu pas le français" and I can give you a more accurate English translation.