I'd be erasing you'd be erasing he'd be erasing we'd be erasing you'd be erasing they'd be erasing
Perfect
I should've erased you should've erased he should've erased we should've erased you should've erased they should've erased
V-ing perfect
I should've been erasing you should've been erasing he should've been erasing we should've been erasing you should've been erasing they should've been erasing
Negation
Simple form
I shouldn't erase you shouldn't erase he shouldn't erase we shouldn't erase you shouldn't erase they shouldn't erase
V-ing form
I shouldn't be erasing you shouldn't be erasing he shouldn't be erasing we shouldn't be erasing you shouldn't be erasing they shouldn't be erasing
Perfect
I shouldn't have erased you shouldn't have erased he shouldn't have erased we shouldn't have erased you shouldn't have erased they shouldn't have erased
V-ing perfect
I shouldn't have been erasing you shouldn't have been erasing he shouldn't have been erasing we shouldn't have been erasing you shouldn't have been erasing they shouldn't have been erasing
Interrogative form
Simple form
should I erase? should you erase? should he erase? should we erase? should you erase? should they erase?
V-ing form
should I be erasing? should you be erasing? should he be erasing? should we be erasing? should you be erasing? should they be erasing?
Perfect
should I have erased? should you have erased? should he have erased? should we have erased? should you have erased? should they have erased?
V-ing perfect
should I have been erasing? should you have been erasing? should he have been erasing? should we have been erasing? should you have been erasing? should they have been erasing?
Interro-negative form
Simple form
shouldn't I erase? shouldn't you erase? shouldn't he erase? shouldn't we erase? shouldn't you erase? shouldn't they erase?
V-ing form
shouldn't I be erasing? shouldn't you be erasing? shouldn't he be erasing? shouldn't we be erasing? shouldn't you be erasing? shouldn't they be erasing?
Perfect
shouldn't I have erased? shouldn't you have erased? shouldn't he have erased? shouldn't we have erased? shouldn't you have erased? shouldn't they have erased?
V-ing perfect
shouldn't I have been erasing? shouldn't you have been erasing? shouldn't he have been erasing? shouldn't we have been erasing? shouldn't you have been erasing? shouldn't they have been erasing?