you should have
Avreste dovuto davvero vederlo coi vostri occhi.
You really should have seen it with your own eyes.
— The Man from Nowhere (2010)
Avreste dovuto lasciarle da sole.
You should have left them alone.
Avreste dovuto vederle ballare.
You should have seen them dance.
Avreste dovuto vederlo danzare.
You should have seen him dance.
You should have listened to them.