I'd be snapping you'd be snapping she'd be snapping we'd be snapping you'd be snapping they'd be snapping
Perfect
I should've snapped you should've snapped she should've snapped we should've snapped you should've snapped they should've snapped
V-ing perfect
I should've been snapping you should've been snapping she should've been snapping we should've been snapping you should've been snapping they should've been snapping
Negation
Simple form
I shouldn't snap you shouldn't snap she shouldn't snap we shouldn't snap you shouldn't snap they shouldn't snap
V-ing form
I shouldn't be snapping you shouldn't be snapping she shouldn't be snapping we shouldn't be snapping you shouldn't be snapping they shouldn't be snapping
Perfect
I shouldn't have snapped you shouldn't have snapped she shouldn't have snapped we shouldn't have snapped you shouldn't have snapped they shouldn't have snapped
V-ing perfect
I shouldn't have been snapping you shouldn't have been snapping she shouldn't have been snapping we shouldn't have been snapping you shouldn't have been snapping they shouldn't have been snapping
Interrogative form
Simple form
should I snap? should you snap? should she snap? should we snap? should you snap? should they snap?
V-ing form
should I be snapping? should you be snapping? should she be snapping? should we be snapping? should you be snapping? should they be snapping?
Perfect
should I have snapped? should you have snapped? should she have snapped? should we have snapped? should you have snapped? should they have snapped?
V-ing perfect
should I have been snapping? should you have been snapping? should she have been snapping? should we have been snapping? should you have been snapping? should they have been snapping?
Interro-negative form
Simple form
shouldn't I snap? shouldn't you snap? shouldn't she snap? shouldn't we snap? shouldn't you snap? shouldn't they snap?
V-ing form
shouldn't I be snapping? shouldn't you be snapping? shouldn't she be snapping? shouldn't we be snapping? shouldn't you be snapping? shouldn't they be snapping?
Perfect
shouldn't I have snapped? shouldn't you have snapped? shouldn't she have snapped? shouldn't we have snapped? shouldn't you have snapped? shouldn't they have snapped?
V-ing perfect
shouldn't I have been snapping? shouldn't you have been snapping? shouldn't she have been snapping? shouldn't we have been snapping? shouldn't you have been snapping? shouldn't they have been snapping?