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 mustn't fluff you mustn't fluff she mustn't fluff we mustn't fluff you mustn't fluff they mustn't fluff	I mustn't be fluffing you mustn't be fluffing she mustn't be fluffing we mustn't be fluffing you mustn't be fluffing they mustn't be fluffing
Perfect	V-ing perfect
I mustn't have fluffed you mustn't have fluffed she mustn't have fluffed we mustn't have fluffed you mustn't have fluffed they mustn't have fluffed	I mustn't have been fluffing you mustn't have been fluffing she mustn't have been fluffing we mustn't have been fluffing you mustn't have been fluffing they mustn't 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
mustn't I fluff? mustn't you fluff? mustn't she fluff? mustn't we fluff? mustn't you fluff? mustn't they fluff?	mustn't I be fluffing? mustn't you be fluffing? mustn't she be fluffing? mustn't we be fluffing? mustn't you be fluffing? mustn't they be fluffing?
Perfect	V-ing perfect
mustn't I have fluffed? mustn't you have fluffed? mustn't she have fluffed? mustn't we have fluffed? mustn't you have fluffed? mustn't they have fluffed?	mustn't I have been fluffing? mustn't you have been fluffing? mustn't she have been fluffing? mustn't we have been fluffing? mustn't you have been fluffing? mustn't they have been fluffing?