must shut
Irregular verb: shut - shut- shut

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must shut
you must shut
she must shut
we must shut
you must shut
they must shut 	I must be shutting
you must be shutting
she must be shutting
we must be shutting
you must be shutting
they must be shutting	I must have shut
you must have shut
she must have shut
we must have shut
you must have shut
they must have shut	I must have been shutting
you must have been shutting
she must have been shutting
we must have been shutting
you must have been shutting
they must have been shutting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not shut
you must not shut
she must not shut
we must not shut
you must not shut
they must not shut 	I must not be shutting
you must not be shutting
she must not be shutting
we must not be shutting
you must not be shutting
they must not be shutting	I must not have shut
you must not have shut
she must not have shut
we must not have shut
you must not have shut
they must not have shut	I must not have been shutting
you must not have been shutting
she must not have been shutting
we must not have been shutting
you must not have been shutting
they must not have been shutting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I shut?
must you shut?
must she shut?
must we shut?
must you shut?
must they shut? 	must I be shutting?
must you be shutting?
must she be shutting?
must we be shutting?
must you be shutting?
must they be shutting? 	must I have shut?
must you have shut?
must she have shut?
must we have shut?
must you have shut?
must they have shut? 	must I have been shutting?
must you have been shutting?
must she have been shutting?
must we have been shutting?
must you have been shutting?
must they have been shutting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not shut?
must you not shut?
must she not shut?
must we not shut?
must you not shut?
must they not shut? 	must I not be shutting?
must you not be shutting?
must she not be shutting?
must we not be shutting?
must you not be shutting?
must they not be shutting? 	must I not have shut?
must you not have shut?
must she not have shut?
must we not have shut?
must you not have shut?
must they not have shut? 	must I not have been shutting?
must you not have been shutting?
must she not have been shutting?
must we not have been shutting?
must you not have been shutting?
must they not have been shutting?