Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I must roll up you must roll up he must roll up we must roll up you must roll up they must roll up
V-ing form
I must be roll uping you must be roll uping he must be roll uping we must be roll uping you must be roll uping they must be roll uping
Perfect
I must have roll uped you must have roll uped he must have roll uped we must have roll uped you must have roll uped they must have roll uped
V-ing perfect
I must have been roll uping you must have been roll uping he must have been roll uping we must have been roll uping you must have been roll uping they must have been roll uping
Negation
Simple form
I must not roll up you must not roll up he must not roll up we must not roll up you must not roll up they must not roll up
V-ing form
I must not be roll uping you must not be roll uping he must not be roll uping we must not be roll uping you must not be roll uping they must not be roll uping
Perfect
I must not have roll uped you must not have roll uped he must not have roll uped we must not have roll uped you must not have roll uped they must not have roll uped
V-ing perfect
I must not have been roll uping you must not have been roll uping he must not have been roll uping we must not have been roll uping you must not have been roll uping they must not have been roll uping
Interrogative form
Simple form
must I roll up? must you roll up? must he roll up? must we roll up? must you roll up? must they roll up?
V-ing form
must I be roll uping? must you be roll uping? must he be roll uping? must we be roll uping? must you be roll uping? must they be roll uping?
Perfect
must I have roll uped? must you have roll uped? must he have roll uped? must we have roll uped? must you have roll uped? must they have roll uped?
V-ing perfect
must I have been roll uping? must you have been roll uping? must he have been roll uping? must we have been roll uping? must you have been roll uping? must they have been roll uping?
Interro-negative form
Simple form
must I not roll up? must you not roll up? must he not roll up? must we not roll up? must you not roll up? must they not roll up?
V-ing form
must I not be roll uping? must you not be roll uping? must he not be roll uping? must we not be roll uping? must you not be roll uping? must they not be roll uping?
Perfect
must I not have roll uped? must you not have roll uped? must he not have roll uped? must we not have roll uped? must you not have roll uped? must they not have roll uped?
V-ing perfect
must I not have been roll uping? must you not have been roll uping? must he not have been roll uping? must we not have been roll uping? must you not have been roll uping? must they not have been roll uping?