I should snap you should snap she should snap we should snap you should snap they should snap
V-ing form
I should be snapping you should be snapping she should be snapping we should be snapping you should be snapping they should be snapping
Perfect
I should have snapped you should have snapped she should have snapped we should have snapped you should have snapped they should have snapped
V-ing perfect
I should have been snapping you should have been snapping she should have been snapping we should have been snapping you should have been snapping they should have been snapping
Negation
Simple form
I should not snap you should not snap she should not snap we should not snap you should not snap they should not snap
V-ing form
I should not be snapping you should not be snapping she should not be snapping we should not be snapping you should not be snapping they should not be snapping
Perfect
I should not have snapped you should not have snapped she should not have snapped we should not have snapped you should not have snapped they should not have snapped
V-ing perfect
I should not have been snapping you should not have been snapping she should not have been snapping we should not have been snapping you should not have been snapping they should not 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
should I not snap? should you not snap? should she not snap? should we not snap? should you not snap? should they not snap?
V-ing form
should I not be snapping? should you not be snapping? should she not be snapping? should we not be snapping? should you not be snapping? should they not be snapping?
Perfect
should I not have snapped? should you not have snapped? should she not have snapped? should we not have snapped? should you not have snapped? should they not have snapped?
V-ing perfect
should I not have been snapping? should you not have been snapping? should she not have been snapping? should we not have been snapping? should you not have been snapping? should they not have been snapping?