long time no see in French
long time no see in French
ça fait longtemps
(idiomatic) I (or we) have not seen you for a long time.
ça fait longtemps [[qu']]on ne [[s']]est pas vu !
(idiomatic) I (or we) have not seen you for a long time.
ça fait un bail !
(idiomatic) I (or we) have not seen you for a long time.