English verb conjugation
MUST GUST

Regular verb: gust - gusted - gusted

Affirmation

Simple form	V-ing form
I must gust you must gust she must gust we must gust you must gust they must gust	I must be gusting you must be gusting she must be gusting we must be gusting you must be gusting they must be gusting
Perfect	V-ing perfect
I must have gusted you must have gusted she must have gusted we must have gusted you must have gusted they must have gusted	I must have been gusting you must have been gusting she must have been gusting we must have been gusting you must have been gusting they must have been gusting

Negation

Simple form	V-ing form
I must not gust you must not gust she must not gust we must not gust you must not gust they must not gust	I must not be gusting you must not be gusting she must not be gusting we must not be gusting you must not be gusting they must not be gusting
Perfect	V-ing perfect
I must not have gusted you must not have gusted she must not have gusted we must not have gusted you must not have gusted they must not have gusted	I must not have been gusting you must not have been gusting she must not have been gusting we must not have been gusting you must not have been gusting they must not have been gusting

Interrogative form

Simple form	V-ing form
must I gust? must you gust? must she gust? must we gust? must you gust? must they gust?	must I be gusting? must you be gusting? must she be gusting? must we be gusting? must you be gusting? must they be gusting?
Perfect	V-ing perfect
must I have gusted? must you have gusted? must she have gusted? must we have gusted? must you have gusted? must they have gusted?	must I have been gusting? must you have been gusting? must she have been gusting? must we have been gusting? must you have been gusting? must they have been gusting?

Interro-negative form

Simple form	V-ing form
must I not gust? must you not gust? must she not gust? must we not gust? must you not gust? must they not gust?	must I not be gusting? must you not be gusting? must she not be gusting? must we not be gusting? must you not be gusting? must they not be gusting?
Perfect	V-ing perfect
must I not have gusted? must you not have gusted? must she not have gusted? must we not have gusted? must you not have gusted? must they not have gusted?	must I not have been gusting? must you not have been gusting? must she not have been gusting? must we not have been gusting? must you not have been gusting? must they not have been gusting?