I must fantasize you must fantasize she must fantasize we must fantasize you must fantasize they must fantasize
V-ing form
I must be fantasizing you must be fantasizing she must be fantasizing we must be fantasizing you must be fantasizing they must be fantasizing
Perfect
I must have fantasized you must have fantasized she must have fantasized we must have fantasized you must have fantasized they must have fantasized
V-ing perfect
I must have been fantasizing you must have been fantasizing she must have been fantasizing we must have been fantasizing you must have been fantasizing they must have been fantasizing
Negation
Simple form
I must not fantasize you must not fantasize she must not fantasize we must not fantasize you must not fantasize they must not fantasize
V-ing form
I must not be fantasizing you must not be fantasizing she must not be fantasizing we must not be fantasizing you must not be fantasizing they must not be fantasizing
Perfect
I must not have fantasized you must not have fantasized she must not have fantasized we must not have fantasized you must not have fantasized they must not have fantasized
V-ing perfect
I must not have been fantasizing you must not have been fantasizing she must not have been fantasizing we must not have been fantasizing you must not have been fantasizing they must not have been fantasizing
Interrogative form
Simple form
must I fantasize? must you fantasize? must she fantasize? must we fantasize? must you fantasize? must they fantasize?
V-ing form
must I be fantasizing? must you be fantasizing? must she be fantasizing? must we be fantasizing? must you be fantasizing? must they be fantasizing?
Perfect
must I have fantasized? must you have fantasized? must she have fantasized? must we have fantasized? must you have fantasized? must they have fantasized?
V-ing perfect
must I have been fantasizing? must you have been fantasizing? must she have been fantasizing? must we have been fantasizing? must you have been fantasizing? must they have been fantasizing?
Interro-negative form
Simple form
must I not fantasize? must you not fantasize? must she not fantasize? must we not fantasize? must you not fantasize? must they not fantasize?
V-ing form
must I not be fantasizing? must you not be fantasizing? must she not be fantasizing? must we not be fantasizing? must you not be fantasizing? must they not be fantasizing?
Perfect
must I not have fantasized? must you not have fantasized? must she not have fantasized? must we not have fantasized? must you not have fantasized? must they not have fantasized?
V-ing perfect
must I not have been fantasizing? must you not have been fantasizing? must she not have been fantasizing? must we not have been fantasizing? must you not have been fantasizing? must they not have been fantasizing?