English verb conjugation
MUST PLUMP

Regular verb: plump - plumped - plumped

Affirmation

Simple form	V-ing form
I must plump you must plump he must plump we must plump you must plump they must plump	I must be plumping you must be plumping he must be plumping we must be plumping you must be plumping they must be plumping
Perfect	V-ing perfect
I must have plumped you must have plumped he must have plumped we must have plumped you must have plumped they must have plumped	I must have been plumping you must have been plumping he must have been plumping we must have been plumping you must have been plumping they must have been plumping

Negation

Simple form	V-ing form
I mustn't plump you mustn't plump he mustn't plump we mustn't plump you mustn't plump they mustn't plump	I mustn't be plumping you mustn't be plumping he mustn't be plumping we mustn't be plumping you mustn't be plumping they mustn't be plumping
Perfect	V-ing perfect
I mustn't have plumped you mustn't have plumped he mustn't have plumped we mustn't have plumped you mustn't have plumped they mustn't have plumped	I mustn't have been plumping you mustn't have been plumping he mustn't have been plumping we mustn't have been plumping you mustn't have been plumping they mustn't have been plumping

Interrogative form

Simple form	V-ing form
must I plump? must you plump? must he plump? must we plump? must you plump? must they plump?	must I be plumping? must you be plumping? must he be plumping? must we be plumping? must you be plumping? must they be plumping?
Perfect	V-ing perfect
must I have plumped? must you have plumped? must he have plumped? must we have plumped? must you have plumped? must they have plumped?	must I have been plumping? must you have been plumping? must he have been plumping? must we have been plumping? must you have been plumping? must they have been plumping?

Interro-negative form

Simple form	V-ing form
mustn't I plump? mustn't you plump? mustn't he plump? mustn't we plump? mustn't you plump? mustn't they plump?	mustn't I be plumping? mustn't you be plumping? mustn't he be plumping? mustn't we be plumping? mustn't you be plumping? mustn't they be plumping?
Perfect	V-ing perfect
mustn't I have plumped? mustn't you have plumped? mustn't he have plumped? mustn't we have plumped? mustn't you have plumped? mustn't they have plumped?	mustn't I have been plumping? mustn't you have been plumping? mustn't he have been plumping? mustn't we have been plumping? mustn't you have been plumping? mustn't they have been plumping?