English verb conjugation
MUST SNAP

Regular verb: snap - snapped - snapped

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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