must unify
Regular verb: unify - unified- unified

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must unify
you must unify
she must unify
we must unify
you must unify
they must unify 	I must be unifying
you must be unifying
she must be unifying
we must be unifying
you must be unifying
they must be unifying	I must have unified
you must have unified
she must have unified
we must have unified
you must have unified
they must have unified	I must have been unifying
you must have been unifying
she must have been unifying
we must have been unifying
you must have been unifying
they must have been unifying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't unify
you mustn't unify
she mustn't unify
we mustn't unify
you mustn't unify
they mustn't unify 	I mustn't be unifying
you mustn't be unifying
she mustn't be unifying
we mustn't be unifying
you mustn't be unifying
they mustn't be unifying	I mustn't have unified
you mustn't have unified
she mustn't have unified
we mustn't have unified
you mustn't have unified
they mustn't have unified	I mustn't have been unifying
you mustn't have been unifying
she mustn't have been unifying
we mustn't have been unifying
you mustn't have been unifying
they mustn't have been unifying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I unify?
must you unify?
must she unify?
must we unify?
must you unify?
must they unify? 	must I be unifying?
must you be unifying?
must she be unifying?
must we be unifying?
must you be unifying?
must they be unifying? 	must I have unified?
must you have unified?
must she have unified?
must we have unified?
must you have unified?
must they have unified? 	must I have been unifying?
must you have been unifying?
must she have been unifying?
must we have been unifying?
must you have been unifying?
must they have been unifying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I unify?
mustn't you unify?
mustn't she unify?
mustn't we unify?
mustn't you unify?
mustn't they unify? 	mustn't I be unifying?
mustn't you be unifying?
mustn't she be unifying?
mustn't we be unifying?
mustn't you be unifying?
mustn't they be unifying? 	mustn't I have unified?
mustn't you have unified?
mustn't she have unified?
mustn't we have unified?
mustn't you have unified?
mustn't they have unified? 	mustn't I have been unifying?
mustn't you have been unifying?
mustn't she have been unifying?
mustn't we have been unifying?
mustn't you have been unifying?
mustn't they have been unifying?