ne comprend pas
She doesn't understand, so shut the fuck up.
Elle ne comprend pas, alors ferme ta putain de gueule.
— Victoria (2015)
Tom doesn't understand what Mary is trying to say.
Tom ne comprend pas ce que Mary essaie de dire.
She doesn't understand things.
Elle ne comprend pas les choses.
— Women on the Verge of a Nervous Breakdown (1988)
She doesn't understand me, either.
Elle ne me comprend pas non plus.
You're the one who doesn't understand.
C'est toi qui ne comprends pas.
Tom doesn't understand the rules.
Tom ne comprend pas les règles.
Tom doesn't understand what you want.
Tom ne comprend pas ce que tu veux.
Tom clearly doesn't understand French very well.
Tom ne comprend visiblement pas très bien le français.
My husband usually doesn't understand what I mean.
Mon mari ne comprend généralement pas ce que je veux dire.