I think you mean "Tu n'es pas bête" which means "You are not stupid"
"Tu ne parles pas français" means "You do not speak French" in French.
Here are a couple options:Tu es méchant - "You are mean"Tu n'es pas agréable- "You are not nice"Tu es être méchant - "You are being mean"Tu n'es pas être agréable - "You are not being nice"
"Tu es Français" means "You are French" in French.
tu n'es pas gentil, pas gentille
Tu es français means "you (singular and informal) are French."
tu es means you are (singular)
"Tu es d'accord" means "you agree" in French.
Tu es de Paris means you are from Paris.
Pas de soucis, tu es trop belle mon amie!
You are very
You are French