Bonjour
The two parts of negation usually are
ne ... pas
But you can find as well
ne ... plus (no more)
ne ... jamais (never)
They have to be on each part of the verb on the présent tense
Tu ne parles pas (you don't speak)
And on each part of the auxiliare "être" OR "avoir" if you're using the passé composé tense or any "composé" tenses
Tu n'as pas parlé
hope this helps ☺☺☺