I didn't … him/her
Je ne lui ai pas dit au revoir.
I didn't say goodbye to him.
Je ne lui ai pas dit que Nandini était là.
I didn't tell him that Nandini was there.
— Mon cœur est déjà pris (1999)
Je ne lui ai pas dit la vérité de peur qu'il ne se fâche.
I didn’t tell him the truth for fear that he might get angry.
Je ne lui ai pas laissé le choix.
I didn't give him a choice.
I didn't hurt him.
I didn't do that to him.
Je ne lui ai pas dit que tu venais.
I didn't tell him/her that you were coming.
Je ne lui ai pas dit d'arrêter.
I didn't tell him/her to stop.
— The Garden of Sinners, film 5 : Spirale contradictoire (2008)
No, I didn't tell him.