Sorry, but this not french, at least not with this orthography.
Did you take it from a song?
In French, "beg to differ" can be translated as "permettez-moi de ne pas être d'accord".
tu ne parles pas français mean : you don't speak French
You can say "Je ne suis pas français" in French to mean "I'm not French."
In French, you would say "Je ne comprends pas" to mean "I do not understand."
"not to do it"
You can say "Ça ne me surprend pas" in French to mean "It does not surprise me."
"Je ne veux" in French translates to "I don't want" in English.
un crâne is a skull in French.
"je ne suis pas" means "I am not.." in French.
"Ne rien" in French means "nothing" or "not anything." It is often used in negations to indicate the absence of something.
"Dans mon opinion" or "De mon avis"
"I don't love you" in French is "Je ne t'aime pas" or "Je ne t'adore pas."