il trompait

Il se trompait de jour de visite ou frappait la nuit à la porte.

He would either get the day of his visit wrong or knock on the door at night.

— Chute libre (1993)

On se trompait tous les deux.

We were both wrong.

Il te trompait ?

Was he cheating on you?

— Pixote, la loi du plus faible (1980)

Il a cru que sa copine le trompait et il a battu ce type.

He thought his girlfriend was cheating on him and he beat up the guy.

— Decision to Leave (2022)

Malheureusement, Barbe se trompait.

Unfortunately, Barbe was mistaken.

— Carandiru (2003)

Il me trompait.

He was cheating on me.

Tu crois que je ne savais pas qu'il me trompait ?

Do you think I didn’t know he was cheating on me?

— Femmes au bord de la crise de nerfs (1988)

Ça ne trompait pas.

It didn't lie.

— Mystic River (2003)

Je viens juste de découvrir que ma femme me trompait.

I just found out my wife was cheating on me.

Sami me trompait.

Sami was cheating on me.