you're going to regret it
You'll regret it.
Eloigne-toi de mon homme ou tu vas le regretter !
Stay away from my man or you'll regret it!
— Carandiru (2003)
Si tu redis ça, tu vas le regretter.
If you say that again, you'll regret it.
— Le prisonnier du Caucase (1996)
Et si tu n'y vas pas, tu vas le regretter !
And if you don't go, you'll regret it!
— Parasite (2019)
Si tu me trompes, tu vas le regretter.
If you cheat on me, you'll regret it.