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