English verb conjugation
MUST UPHOLSTER

Regular verb: upholster - upholstered - upholstered

Affirmation

Simple form	V-ing form
I must upholster you must upholster he must upholster we must upholster you must upholster they must upholster	I must be upholstering you must be upholstering he must be upholstering we must be upholstering you must be upholstering they must be upholstering
Perfect	V-ing perfect
I must have upholstered you must have upholstered he must have upholstered we must have upholstered you must have upholstered they must have upholstered	I must have been upholstering you must have been upholstering he must have been upholstering we must have been upholstering you must have been upholstering they must have been upholstering

Negation

Simple form	V-ing form
I must not upholster you must not upholster he must not upholster we must not upholster you must not upholster they must not upholster	I must not be upholstering you must not be upholstering he must not be upholstering we must not be upholstering you must not be upholstering they must not be upholstering
Perfect	V-ing perfect
I must not have upholstered you must not have upholstered he must not have upholstered we must not have upholstered you must not have upholstered they must not have upholstered	I must not have been upholstering you must not have been upholstering he must not have been upholstering we must not have been upholstering you must not have been upholstering they must not have been upholstering

Interrogative form

Simple form	V-ing form
must I upholster? must you upholster? must he upholster? must we upholster? must you upholster? must they upholster?	must I be upholstering? must you be upholstering? must he be upholstering? must we be upholstering? must you be upholstering? must they be upholstering?
Perfect	V-ing perfect
must I have upholstered? must you have upholstered? must he have upholstered? must we have upholstered? must you have upholstered? must they have upholstered?	must I have been upholstering? must you have been upholstering? must he have been upholstering? must we have been upholstering? must you have been upholstering? must they have been upholstering?

Interro-negative form

Simple form	V-ing form
must I not upholster? must you not upholster? must he not upholster? must we not upholster? must you not upholster? must they not upholster?	must I not be upholstering? must you not be upholstering? must he not be upholstering? must we not be upholstering? must you not be upholstering? must they not be upholstering?
Perfect	V-ing perfect
must I not have upholstered? must you not have upholstered? must he not have upholstered? must we not have upholstered? must you not have upholstered? must they not have upholstered?	must I not have been upholstering? must you not have been upholstering? must he not have been upholstering? must we not have been upholstering? must you not have been upholstering? must they not have been upholstering?