was cheating on, was deceiving, was tricking
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)
Sami me trompait.
Sami was cheating on me.
Je viens juste de découvrir que ma femme me trompait.
I just found out my wife was cheating on me.
Malheureusement, Barbe se trompait.
Unfortunately, Barbe was mistaken.
— Carandiru (2003)
Il te trompait ?
Was he cheating on you?
— Pixote, la loi du plus faible (1980)
Sans vous, Arsène Lupin se trompait, et l'autre s'échappait !
Without you, Arsène Lupin would have been mistaken, and the other man would have escaped!
Il ne se trompait pas.
He was not mistaken.
— Bullet Train (2022)
Il me trompait.
He was cheating on me.
Ça ne trompait pas.
It didn't lie.
— Mystic River (2003)
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)
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)
Marie trompait son mari.
Mary was cheating on her husband.
Il me trompait sans vergogne.
He cheated on me shamelessly.
— Volver (2006)
Il trompait sa femme.
He was cheating on his wife.
On se trompait tous les deux.
We were both wrong.
Elle trompait son mari.
She was cheating on her husband.