must enclose
Regular verb: enclose - enclosed- enclosed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must enclose
you must enclose
he must enclose
we must enclose
you must enclose
they must enclose 	I must be enclosing
you must be enclosing
he must be enclosing
we must be enclosing
you must be enclosing
they must be enclosing	I must have enclosed
you must have enclosed
he must have enclosed
we must have enclosed
you must have enclosed
they must have enclosed	I must have been enclosing
you must have been enclosing
he must have been enclosing
we must have been enclosing
you must have been enclosing
they must have been enclosing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not enclose
you must not enclose
he must not enclose
we must not enclose
you must not enclose
they must not enclose 	I must not be enclosing
you must not be enclosing
he must not be enclosing
we must not be enclosing
you must not be enclosing
they must not be enclosing	I must not have enclosed
you must not have enclosed
he must not have enclosed
we must not have enclosed
you must not have enclosed
they must not have enclosed	I must not have been enclosing
you must not have been enclosing
he must not have been enclosing
we must not have been enclosing
you must not have been enclosing
they must not have been enclosing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I enclose?
must you enclose?
must he enclose?
must we enclose?
must you enclose?
must they enclose? 	must I be enclosing?
must you be enclosing?
must he be enclosing?
must we be enclosing?
must you be enclosing?
must they be enclosing? 	must I have enclosed?
must you have enclosed?
must he have enclosed?
must we have enclosed?
must you have enclosed?
must they have enclosed? 	must I have been enclosing?
must you have been enclosing?
must he have been enclosing?
must we have been enclosing?
must you have been enclosing?
must they have been enclosing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not enclose?
must you not enclose?
must he not enclose?
must we not enclose?
must you not enclose?
must they not enclose? 	must I not be enclosing?
must you not be enclosing?
must he not be enclosing?
must we not be enclosing?
must you not be enclosing?
must they not be enclosing? 	must I not have enclosed?
must you not have enclosed?
must he not have enclosed?
must we not have enclosed?
must you not have enclosed?
must they not have enclosed? 	must I not have been enclosing?
must you not have been enclosing?
must he not have been enclosing?
must we not have been enclosing?
must you not have been enclosing?
must they not have been enclosing?