was changing, used to change
Ça n'aurait rien dû changer mais ça changeait quelque chose.
It shouldn't have changed anything, but it did.
— Apocalypse Now (1979)
À ton âge, il changeait un sifflet en montre qui chante l'heure.
At your age, he could turn a whistle into a watch that sings the time.
— Harry Potter et la Coupe de feu (2005)
Le menu changeait tous les jours.
The menu changed every day.
Si voter changeait quelque chose, on l'aurait interdit.
If voting changed anything, they would have banned it.