English verb conjugation
MUST FLOORBOARD

Regular verb: floorboard - floorboarded - floorboarded

Affirmation

Simple form	V-ing form
I must floorboard you must floorboard he must floorboard we must floorboard you must floorboard they must floorboard	I must be floorboarding you must be floorboarding he must be floorboarding we must be floorboarding you must be floorboarding they must be floorboarding
Perfect	V-ing perfect
I must have floorboarded you must have floorboarded he must have floorboarded we must have floorboarded you must have floorboarded they must have floorboarded	I must have been floorboarding you must have been floorboarding he must have been floorboarding we must have been floorboarding you must have been floorboarding they must have been floorboarding

Negation

Simple form	V-ing form
I mustn't floorboard you mustn't floorboard he mustn't floorboard we mustn't floorboard you mustn't floorboard they mustn't floorboard	I mustn't be floorboarding you mustn't be floorboarding he mustn't be floorboarding we mustn't be floorboarding you mustn't be floorboarding they mustn't be floorboarding
Perfect	V-ing perfect
I mustn't have floorboarded you mustn't have floorboarded he mustn't have floorboarded we mustn't have floorboarded you mustn't have floorboarded they mustn't have floorboarded	I mustn't have been floorboarding you mustn't have been floorboarding he mustn't have been floorboarding we mustn't have been floorboarding you mustn't have been floorboarding they mustn't have been floorboarding

Interrogative form

Simple form	V-ing form
must I floorboard? must you floorboard? must he floorboard? must we floorboard? must you floorboard? must they floorboard?	must I be floorboarding? must you be floorboarding? must he be floorboarding? must we be floorboarding? must you be floorboarding? must they be floorboarding?
Perfect	V-ing perfect
must I have floorboarded? must you have floorboarded? must he have floorboarded? must we have floorboarded? must you have floorboarded? must they have floorboarded?	must I have been floorboarding? must you have been floorboarding? must he have been floorboarding? must we have been floorboarding? must you have been floorboarding? must they have been floorboarding?

Interro-negative form

Simple form	V-ing form
mustn't I floorboard? mustn't you floorboard? mustn't he floorboard? mustn't we floorboard? mustn't you floorboard? mustn't they floorboard?	mustn't I be floorboarding? mustn't you be floorboarding? mustn't he be floorboarding? mustn't we be floorboarding? mustn't you be floorboarding? mustn't they be floorboarding?
Perfect	V-ing perfect
mustn't I have floorboarded? mustn't you have floorboarded? mustn't he have floorboarded? mustn't we have floorboarded? mustn't you have floorboarded? mustn't they have floorboarded?	mustn't I have been floorboarding? mustn't you have been floorboarding? mustn't he have been floorboarding? mustn't we have been floorboarding? mustn't you have been floorboarding? mustn't they have been floorboarding?