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 mustn't snap you mustn't snap he mustn't snap we mustn't snap you mustn't snap they mustn't snap	I mustn't be snapping you mustn't be snapping he mustn't be snapping we mustn't be snapping you mustn't be snapping they mustn't be snapping
Perfect	V-ing perfect
I mustn't have snapped you mustn't have snapped he mustn't have snapped we mustn't have snapped you mustn't have snapped they mustn't have snapped	I mustn't have been snapping you mustn't have been snapping he mustn't have been snapping we mustn't have been snapping you mustn't have been snapping they mustn't 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
mustn't I snap? mustn't you snap? mustn't he snap? mustn't we snap? mustn't you snap? mustn't they snap?	mustn't I be snapping? mustn't you be snapping? mustn't he be snapping? mustn't we be snapping? mustn't you be snapping? mustn't they be snapping?
Perfect	V-ing perfect
mustn't I have snapped? mustn't you have snapped? mustn't he have snapped? mustn't we have snapped? mustn't you have snapped? mustn't they have snapped?	mustn't I have been snapping? mustn't you have been snapping? mustn't he have been snapping? mustn't we have been snapping? mustn't you have been snapping? mustn't they have been snapping?