English verb conjugation
MUST WINTERIZE

Regular verb: winterize - winterized - winterized

Affirmation

Simple form	V-ing form
I must winterize you must winterize she must winterize we must winterize you must winterize they must winterize	I must be winterizing you must be winterizing she must be winterizing we must be winterizing you must be winterizing they must be winterizing
Perfect	V-ing perfect
I must have winterized you must have winterized she must have winterized we must have winterized you must have winterized they must have winterized	I must have been winterizing you must have been winterizing she must have been winterizing we must have been winterizing you must have been winterizing they must have been winterizing

Negation

Simple form	V-ing form
I mustn't winterize you mustn't winterize she mustn't winterize we mustn't winterize you mustn't winterize they mustn't winterize	I mustn't be winterizing you mustn't be winterizing she mustn't be winterizing we mustn't be winterizing you mustn't be winterizing they mustn't be winterizing
Perfect	V-ing perfect
I mustn't have winterized you mustn't have winterized she mustn't have winterized we mustn't have winterized you mustn't have winterized they mustn't have winterized	I mustn't have been winterizing you mustn't have been winterizing she mustn't have been winterizing we mustn't have been winterizing you mustn't have been winterizing they mustn't have been winterizing

Interrogative form

Simple form	V-ing form
must I winterize? must you winterize? must she winterize? must we winterize? must you winterize? must they winterize?	must I be winterizing? must you be winterizing? must she be winterizing? must we be winterizing? must you be winterizing? must they be winterizing?
Perfect	V-ing perfect
must I have winterized? must you have winterized? must she have winterized? must we have winterized? must you have winterized? must they have winterized?	must I have been winterizing? must you have been winterizing? must she have been winterizing? must we have been winterizing? must you have been winterizing? must they have been winterizing?

Interro-negative form

Simple form	V-ing form
mustn't I winterize? mustn't you winterize? mustn't she winterize? mustn't we winterize? mustn't you winterize? mustn't they winterize?	mustn't I be winterizing? mustn't you be winterizing? mustn't she be winterizing? mustn't we be winterizing? mustn't you be winterizing? mustn't they be winterizing?
Perfect	V-ing perfect
mustn't I have winterized? mustn't you have winterized? mustn't she have winterized? mustn't we have winterized? mustn't you have winterized? mustn't they have winterized?	mustn't I have been winterizing? mustn't you have been winterizing? mustn't she have been winterizing? mustn't we have been winterizing? mustn't you have been winterizing? mustn't they have been winterizing?