Shouldn’t we ask for permission first?
Shouldn’t we read the directions before we install the air conditioner?
Shouldn’t we check the weather before we go out?
Shouldn’t you try to save some money rather than spend it all?
A: Are you ready to go to the beach?
B: Wait. Shouldn’t we check the weather report before we leave?
A: No, it’s a beautiful day and the sun is out.
B: I heard on the news last night that there was a forecast for rain.
A: You shouldn’t believe everything you hear on TV.