will catch up (with), will catch
Je les rattraperai bientôt.
I'll catch up with them soon.
— Mademoiselle (2016)
Je vous rattraperai.
I'll catch up with you.
— Crazy Rich Asians (2018)
Je me rattraperai.
I'll make it up to you.
— Presque Célèbre (2000)
Marche lentement et je te rattraperai.
Walk slowly and I'll catch up with you.
Je te rattraperai.
— Le Patient anglais (1996)
Je le rattraperai avant qu'il y arrive.
I'll catch him before he gets there.