English verb conjugation
MUST SNICKER

Regular verb: snicker - snickered - snickered

Affirmation

Simple form	V-ing form
I must snicker you must snicker she must snicker we must snicker you must snicker they must snicker	I must be snickering you must be snickering she must be snickering we must be snickering you must be snickering they must be snickering
Perfect	V-ing perfect
I must have snickered you must have snickered she must have snickered we must have snickered you must have snickered they must have snickered	I must have been snickering you must have been snickering she must have been snickering we must have been snickering you must have been snickering they must have been snickering

Negation

Simple form	V-ing form
I must not snicker you must not snicker she must not snicker we must not snicker you must not snicker they must not snicker	I must not be snickering you must not be snickering she must not be snickering we must not be snickering you must not be snickering they must not be snickering
Perfect	V-ing perfect
I must not have snickered you must not have snickered she must not have snickered we must not have snickered you must not have snickered they must not have snickered	I must not have been snickering you must not have been snickering she must not have been snickering we must not have been snickering you must not have been snickering they must not have been snickering

Interrogative form

Simple form	V-ing form
must I snicker? must you snicker? must she snicker? must we snicker? must you snicker? must they snicker?	must I be snickering? must you be snickering? must she be snickering? must we be snickering? must you be snickering? must they be snickering?
Perfect	V-ing perfect
must I have snickered? must you have snickered? must she have snickered? must we have snickered? must you have snickered? must they have snickered?	must I have been snickering? must you have been snickering? must she have been snickering? must we have been snickering? must you have been snickering? must they have been snickering?

Interro-negative form

Simple form	V-ing form
must I not snicker? must you not snicker? must she not snicker? must we not snicker? must you not snicker? must they not snicker?	must I not be snickering? must you not be snickering? must she not be snickering? must we not be snickering? must you not be snickering? must they not be snickering?
Perfect	V-ing perfect
must I not have snickered? must you not have snickered? must she not have snickered? must we not have snickered? must you not have snickered? must they not have snickered?	must I not have been snickering? must you not have been snickering? must she not have been snickering? must we not have been snickering? must you not have been snickering? must they not have been snickering?