איך אני אומרת "הם התאהבו במשך הזמן" באנגלית?

they fell in love over the time..

שואל השאלה:
בטוח?

כן

they fell in love for a while

they fell in love over the time

they have fallen in love over time
as time has gone by, they have fallen in love
as time has gone by they have become lovers
as time has gone by they have fallen in love in the course of time