English verb conjugation
MUST PLUMPEN

Regular verb: plumpen - plumpened - plumpened

Affirmation

Simple form	V-ing form
I must plumpen you must plumpen he must plumpen we must plumpen you must plumpen they must plumpen	I must be plumpening you must be plumpening he must be plumpening we must be plumpening you must be plumpening they must be plumpening
Perfect	V-ing perfect
I must have plumpened you must have plumpened he must have plumpened we must have plumpened you must have plumpened they must have plumpened	I must have been plumpening you must have been plumpening he must have been plumpening we must have been plumpening you must have been plumpening they must have been plumpening

Negation

Simple form	V-ing form
I mustn't plumpen you mustn't plumpen he mustn't plumpen we mustn't plumpen you mustn't plumpen they mustn't plumpen	I mustn't be plumpening you mustn't be plumpening he mustn't be plumpening we mustn't be plumpening you mustn't be plumpening they mustn't be plumpening
Perfect	V-ing perfect
I mustn't have plumpened you mustn't have plumpened he mustn't have plumpened we mustn't have plumpened you mustn't have plumpened they mustn't have plumpened	I mustn't have been plumpening you mustn't have been plumpening he mustn't have been plumpening we mustn't have been plumpening you mustn't have been plumpening they mustn't have been plumpening

Interrogative form

Simple form	V-ing form
must I plumpen? must you plumpen? must he plumpen? must we plumpen? must you plumpen? must they plumpen?	must I be plumpening? must you be plumpening? must he be plumpening? must we be plumpening? must you be plumpening? must they be plumpening?
Perfect	V-ing perfect
must I have plumpened? must you have plumpened? must he have plumpened? must we have plumpened? must you have plumpened? must they have plumpened?	must I have been plumpening? must you have been plumpening? must he have been plumpening? must we have been plumpening? must you have been plumpening? must they have been plumpening?

Interro-negative form

Simple form	V-ing form
mustn't I plumpen? mustn't you plumpen? mustn't he plumpen? mustn't we plumpen? mustn't you plumpen? mustn't they plumpen?	mustn't I be plumpening? mustn't you be plumpening? mustn't he be plumpening? mustn't we be plumpening? mustn't you be plumpening? mustn't they be plumpening?
Perfect	V-ing perfect
mustn't I have plumpened? mustn't you have plumpened? mustn't he have plumpened? mustn't we have plumpened? mustn't you have plumpened? mustn't they have plumpened?	mustn't I have been plumpening? mustn't you have been plumpening? mustn't he have been plumpening? mustn't we have been plumpening? mustn't you have been plumpening? mustn't they have been plumpening?