English verb conjugation
MUST WEATHERIZE

Regular verb: weatherize - weatherized - weatherized

Affirmation

Simple form	V-ing form
I must weatherize you must weatherize she must weatherize we must weatherize you must weatherize they must weatherize	I must be weatherizing you must be weatherizing she must be weatherizing we must be weatherizing you must be weatherizing they must be weatherizing
Perfect	V-ing perfect
I must have weatherized you must have weatherized she must have weatherized we must have weatherized you must have weatherized they must have weatherized	I must have been weatherizing you must have been weatherizing she must have been weatherizing we must have been weatherizing you must have been weatherizing they must have been weatherizing

Negation

Simple form	V-ing form
I must not weatherize you must not weatherize she must not weatherize we must not weatherize you must not weatherize they must not weatherize	I must not be weatherizing you must not be weatherizing she must not be weatherizing we must not be weatherizing you must not be weatherizing they must not be weatherizing
Perfect	V-ing perfect
I must not have weatherized you must not have weatherized she must not have weatherized we must not have weatherized you must not have weatherized they must not have weatherized	I must not have been weatherizing you must not have been weatherizing she must not have been weatherizing we must not have been weatherizing you must not have been weatherizing they must not have been weatherizing

Interrogative form

Simple form	V-ing form
must I weatherize? must you weatherize? must she weatherize? must we weatherize? must you weatherize? must they weatherize?	must I be weatherizing? must you be weatherizing? must she be weatherizing? must we be weatherizing? must you be weatherizing? must they be weatherizing?
Perfect	V-ing perfect
must I have weatherized? must you have weatherized? must she have weatherized? must we have weatherized? must you have weatherized? must they have weatherized?	must I have been weatherizing? must you have been weatherizing? must she have been weatherizing? must we have been weatherizing? must you have been weatherizing? must they have been weatherizing?

Interro-negative form

Simple form	V-ing form
must I not weatherize? must you not weatherize? must she not weatherize? must we not weatherize? must you not weatherize? must they not weatherize?	must I not be weatherizing? must you not be weatherizing? must she not be weatherizing? must we not be weatherizing? must you not be weatherizing? must they not be weatherizing?
Perfect	V-ing perfect
must I not have weatherized? must you not have weatherized? must she not have weatherized? must we not have weatherized? must you not have weatherized? must they not have weatherized?	must I not have been weatherizing? must you not have been weatherizing? must she not have been weatherizing? must we not have been weatherizing? must you not have been weatherizing? must they not have been weatherizing?