does not understand
Elle ne comprend pas les risques.
She doesn't understand the risks.
Il ne comprend pas bien le jargon des jeunes.
He doesn’t really understand young people’s slang.
Tom ne comprend pas les règles.
Tom doesn’t understand the rules.
Tom est celui qui ne comprend pas.
Tom is the one who doesn't understand.
Tom ne comprend pas du tout le français.
Tom doesn’t understand French at all.
N'oublions pas que Tom ne comprend pas le français.
Let's not forget that Tom doesn't understand French.
He doesn't understand that.
Tom ne comprend pas ce que Mary essaie de dire.
Tom doesn't understand what Mary is trying to say.