Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I must stagger stagger you must stagger stagger she must stagger stagger we must stagger stagger you must stagger stagger they must stagger stagger
V-ing form
I must be stagger staggering you must be stagger staggering she must be stagger staggering we must be stagger staggering you must be stagger staggering they must be stagger staggering
Perfect
I must have stagger staggered you must have stagger staggered she must have stagger staggered we must have stagger staggered you must have stagger staggered they must have stagger staggered
V-ing perfect
I must have been stagger staggering you must have been stagger staggering she must have been stagger staggering we must have been stagger staggering you must have been stagger staggering they must have been stagger staggering
Negation
Simple form
I must not stagger stagger you must not stagger stagger she must not stagger stagger we must not stagger stagger you must not stagger stagger they must not stagger stagger
V-ing form
I must not be stagger staggering you must not be stagger staggering she must not be stagger staggering we must not be stagger staggering you must not be stagger staggering they must not be stagger staggering
Perfect
I must not have stagger staggered you must not have stagger staggered she must not have stagger staggered we must not have stagger staggered you must not have stagger staggered they must not have stagger staggered
V-ing perfect
I must not have been stagger staggering you must not have been stagger staggering she must not have been stagger staggering we must not have been stagger staggering you must not have been stagger staggering they must not have been stagger staggering
Interrogative form
Simple form
must I stagger stagger? must you stagger stagger? must she stagger stagger? must we stagger stagger? must you stagger stagger? must they stagger stagger?
V-ing form
must I be stagger staggering? must you be stagger staggering? must she be stagger staggering? must we be stagger staggering? must you be stagger staggering? must they be stagger staggering?
Perfect
must I have stagger staggered? must you have stagger staggered? must she have stagger staggered? must we have stagger staggered? must you have stagger staggered? must they have stagger staggered?
V-ing perfect
must I have been stagger staggering? must you have been stagger staggering? must she have been stagger staggering? must we have been stagger staggering? must you have been stagger staggering? must they have been stagger staggering?
Interro-negative form
Simple form
must I not stagger stagger? must you not stagger stagger? must she not stagger stagger? must we not stagger stagger? must you not stagger stagger? must they not stagger stagger?
V-ing form
must I not be stagger staggering? must you not be stagger staggering? must she not be stagger staggering? must we not be stagger staggering? must you not be stagger staggering? must they not be stagger staggering?
Perfect
must I not have stagger staggered? must you not have stagger staggered? must she not have stagger staggered? must we not have stagger staggered? must you not have stagger staggered? must they not have stagger staggered?
V-ing perfect
must I not have been stagger staggering? must you not have been stagger staggering? must she not have been stagger staggering? must we not have been stagger staggering? must you not have been stagger staggering? must they not have been stagger staggering?