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