must adjoin
Regular verb: adjoin - adjoined- adjoined

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must adjoin
you must adjoin
she must adjoin
we must adjoin
you must adjoin
they must adjoin 	I must be adjoining
you must be adjoining
she must be adjoining
we must be adjoining
you must be adjoining
they must be adjoining	I must have adjoined
you must have adjoined
she must have adjoined
we must have adjoined
you must have adjoined
they must have adjoined	I must have been adjoining
you must have been adjoining
she must have been adjoining
we must have been adjoining
you must have been adjoining
they must have been adjoining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not adjoin
you must not adjoin
she must not adjoin
we must not adjoin
you must not adjoin
they must not adjoin 	I must not be adjoining
you must not be adjoining
she must not be adjoining
we must not be adjoining
you must not be adjoining
they must not be adjoining	I must not have adjoined
you must not have adjoined
she must not have adjoined
we must not have adjoined
you must not have adjoined
they must not have adjoined	I must not have been adjoining
you must not have been adjoining
she must not have been adjoining
we must not have been adjoining
you must not have been adjoining
they must not have been adjoining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I adjoin?
must you adjoin?
must she adjoin?
must we adjoin?
must you adjoin?
must they adjoin? 	must I be adjoining?
must you be adjoining?
must she be adjoining?
must we be adjoining?
must you be adjoining?
must they be adjoining? 	must I have adjoined?
must you have adjoined?
must she have adjoined?
must we have adjoined?
must you have adjoined?
must they have adjoined? 	must I have been adjoining?
must you have been adjoining?
must she have been adjoining?
must we have been adjoining?
must you have been adjoining?
must they have been adjoining? 	

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