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