you'll know it
Tu le sauras une fois qu'on fera affaire.
You'll know once we do business.
Regarde sous mon œil, et tu le sauras.
Look under my eye, and you’ll know.
— Blade Runner 2049 (2017)
You'll know tomorrow.
Tu le sauras si tu me dis qui t'a appelée à mon bureau.
You'll find out if you tell me who called you to my office.
— Tesis (1996)
Quand il y aura des choses à dire sur Rachel et moi, tu le sauras.
When there’s something to say about Rachel and me, you’ll know.
— Crazy Rich Asians (2018)
You will know.
You will know in due time.
You'll find out soon enough.