English verb conjugation
CAN SNAP

Regular verb: snap - snapped - snapped

Affirmation

Simple form	V-ing form
I can snap you can snap he can snap we can snap you can snap they can snap	I can be snapping you can be snapping he can be snapping we can be snapping you can be snapping they can be snapping
Perfect	V-ing perfect
I can have snapped you can have snapped he can have snapped we can have snapped you can have snapped they can have snapped	I can have been snapping you can have been snapping he can have been snapping we can have been snapping you can have been snapping they can have been snapping

Negation

Simple form	V-ing form
I cannot snap you cannot snap he cannot snap we cannot snap you cannot snap they cannot snap	I cannot be snapping you cannot be snapping he cannot be snapping we cannot be snapping you cannot be snapping they cannot be snapping
Perfect	V-ing perfect
I cannot have snapped you cannot have snapped he cannot have snapped we cannot have snapped you cannot have snapped they cannot have snapped	I cannot have been snapping you cannot have been snapping he cannot have been snapping we cannot have been snapping you cannot have been snapping they cannot have been snapping

Interrogative form

Simple form	V-ing form
can I snap? can you snap? can he snap? can we snap? can you snap? can they snap?	can I be snapping? can you be snapping? can he be snapping? can we be snapping? can you be snapping? can they be snapping?
Perfect	V-ing perfect
can I have snapped? can you have snapped? can he have snapped? can we have snapped? can you have snapped? can they have snapped?	can I have been snapping? can you have been snapping? can he have been snapping? can we have been snapping? can you have been snapping? can they have been snapping?

Interro-negative form

Simple form	V-ing form
can I not snap? can you not snap? can he not snap? can we not snap? can you not snap? can they not snap?	can I not be snapping? can you not be snapping? can he not be snapping? can we not be snapping? can you not be snapping? can they not be snapping?
Perfect	V-ing perfect
can I not have snapped? can you not have snapped? can he not have snapped? can we not have snapped? can you not have snapped? can they not have snapped?	can I not have been snapping? can you not have been snapping? can he not have been snapping? can we not have been snapping? can you not have been snapping? can they not have been snapping?