she didn't ... it
Elle ne l'a pas vu depuis longtemps.
She hasn't seen him in a long time.
She didn't say it.
J'ignore pourquoi elle ne l'a pas remarqué auparavant.
I don't know why she didn't notice it before.
Elle ne l'a pas apprécié au premier abord.
She didn’t like him at first.
But she didn't.
Elle ne l'a pas épousé de sa propre volonté.
She did not marry him of her own free will.
Elle ne l'a pas fait et on ne l'a plus revue.
She didn't do it, and we never saw her again.
— Psychose (1960)
No, she didn't say it.
She didn't understand it.