English verb conjugation
MUST FLUFF

Regular verb: fluff - fluffed - fluffed

Affirmation

Simple form	V-ing form
I must fluff you must fluff she must fluff we must fluff you must fluff they must fluff	I must be fluffing you must be fluffing she must be fluffing we must be fluffing you must be fluffing they must be fluffing
Perfect	V-ing perfect
I must have fluffed you must have fluffed she must have fluffed we must have fluffed you must have fluffed they must have fluffed	I must have been fluffing you must have been fluffing she must have been fluffing we must have been fluffing you must have been fluffing they must have been fluffing

Negation

Simple form	V-ing form
I must not fluff you must not fluff she must not fluff we must not fluff you must not fluff they must not fluff	I must not be fluffing you must not be fluffing she must not be fluffing we must not be fluffing you must not be fluffing they must not be fluffing
Perfect	V-ing perfect
I must not have fluffed you must not have fluffed she must not have fluffed we must not have fluffed you must not have fluffed they must not have fluffed	I must not have been fluffing you must not have been fluffing she must not have been fluffing we must not have been fluffing you must not have been fluffing they must not have been fluffing

Interrogative form

Simple form	V-ing form
must I fluff? must you fluff? must she fluff? must we fluff? must you fluff? must they fluff?	must I be fluffing? must you be fluffing? must she be fluffing? must we be fluffing? must you be fluffing? must they be fluffing?
Perfect	V-ing perfect
must I have fluffed? must you have fluffed? must she have fluffed? must we have fluffed? must you have fluffed? must they have fluffed?	must I have been fluffing? must you have been fluffing? must she have been fluffing? must we have been fluffing? must you have been fluffing? must they have been fluffing?

Interro-negative form

Simple form	V-ing form
must I not fluff? must you not fluff? must she not fluff? must we not fluff? must you not fluff? must they not fluff?	must I not be fluffing? must you not be fluffing? must she not be fluffing? must we not be fluffing? must you not be fluffing? must they not be fluffing?
Perfect	V-ing perfect
must I not have fluffed? must you not have fluffed? must she not have fluffed? must we not have fluffed? must you not have fluffed? must they not have fluffed?	must I not have been fluffing? must you not have been fluffing? must she not have been fluffing? must we not have been fluffing? must you not have been fluffing? must they not have been fluffing?