English verb conjugation
MUST LEMMATIZE

Regular verb: lemmatize - lemmatized - lemmatized

Affirmation

Simple form	V-ing form
I must lemmatize you must lemmatize he must lemmatize we must lemmatize you must lemmatize they must lemmatize	I must be lemmatizing you must be lemmatizing he must be lemmatizing we must be lemmatizing you must be lemmatizing they must be lemmatizing
Perfect	V-ing perfect
I must have lemmatized you must have lemmatized he must have lemmatized we must have lemmatized you must have lemmatized they must have lemmatized	I must have been lemmatizing you must have been lemmatizing he must have been lemmatizing we must have been lemmatizing you must have been lemmatizing they must have been lemmatizing

Negation

Simple form	V-ing form
I mustn't lemmatize you mustn't lemmatize he mustn't lemmatize we mustn't lemmatize you mustn't lemmatize they mustn't lemmatize	I mustn't be lemmatizing you mustn't be lemmatizing he mustn't be lemmatizing we mustn't be lemmatizing you mustn't be lemmatizing they mustn't be lemmatizing
Perfect	V-ing perfect
I mustn't have lemmatized you mustn't have lemmatized he mustn't have lemmatized we mustn't have lemmatized you mustn't have lemmatized they mustn't have lemmatized	I mustn't have been lemmatizing you mustn't have been lemmatizing he mustn't have been lemmatizing we mustn't have been lemmatizing you mustn't have been lemmatizing they mustn't have been lemmatizing

Interrogative form

Simple form	V-ing form
must I lemmatize? must you lemmatize? must he lemmatize? must we lemmatize? must you lemmatize? must they lemmatize?	must I be lemmatizing? must you be lemmatizing? must he be lemmatizing? must we be lemmatizing? must you be lemmatizing? must they be lemmatizing?
Perfect	V-ing perfect
must I have lemmatized? must you have lemmatized? must he have lemmatized? must we have lemmatized? must you have lemmatized? must they have lemmatized?	must I have been lemmatizing? must you have been lemmatizing? must he have been lemmatizing? must we have been lemmatizing? must you have been lemmatizing? must they have been lemmatizing?

Interro-negative form

Simple form	V-ing form
mustn't I lemmatize? mustn't you lemmatize? mustn't he lemmatize? mustn't we lemmatize? mustn't you lemmatize? mustn't they lemmatize?	mustn't I be lemmatizing? mustn't you be lemmatizing? mustn't he be lemmatizing? mustn't we be lemmatizing? mustn't you be lemmatizing? mustn't they be lemmatizing?
Perfect	V-ing perfect
mustn't I have lemmatized? mustn't you have lemmatized? mustn't he have lemmatized? mustn't we have lemmatized? mustn't you have lemmatized? mustn't they have lemmatized?	mustn't I have been lemmatizing? mustn't you have been lemmatizing? mustn't he have been lemmatizing? mustn't we have been lemmatizing? mustn't you have been lemmatizing? mustn't they have been lemmatizing?