must unfetter
Regular verb: unfetter - unfettered- unfettered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must unfetter
you must unfetter
she must unfetter
we must unfetter
you must unfetter
they must unfetter 	I must be unfettering
you must be unfettering
she must be unfettering
we must be unfettering
you must be unfettering
they must be unfettering	I must have unfettered
you must have unfettered
she must have unfettered
we must have unfettered
you must have unfettered
they must have unfettered	I must have been unfettering
you must have been unfettering
she must have been unfettering
we must have been unfettering
you must have been unfettering
they must have been unfettering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't unfetter
you mustn't unfetter
she mustn't unfetter
we mustn't unfetter
you mustn't unfetter
they mustn't unfetter 	I mustn't be unfettering
you mustn't be unfettering
she mustn't be unfettering
we mustn't be unfettering
you mustn't be unfettering
they mustn't be unfettering	I mustn't have unfettered
you mustn't have unfettered
she mustn't have unfettered
we mustn't have unfettered
you mustn't have unfettered
they mustn't have unfettered	I mustn't have been unfettering
you mustn't have been unfettering
she mustn't have been unfettering
we mustn't have been unfettering
you mustn't have been unfettering
they mustn't have been unfettering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I unfetter?
must you unfetter?
must she unfetter?
must we unfetter?
must you unfetter?
must they unfetter? 	must I be unfettering?
must you be unfettering?
must she be unfettering?
must we be unfettering?
must you be unfettering?
must they be unfettering? 	must I have unfettered?
must you have unfettered?
must she have unfettered?
must we have unfettered?
must you have unfettered?
must they have unfettered? 	must I have been unfettering?
must you have been unfettering?
must she have been unfettering?
must we have been unfettering?
must you have been unfettering?
must they have been unfettering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I unfetter?
mustn't you unfetter?
mustn't she unfetter?
mustn't we unfetter?
mustn't you unfetter?
mustn't they unfetter? 	mustn't I be unfettering?
mustn't you be unfettering?
mustn't she be unfettering?
mustn't we be unfettering?
mustn't you be unfettering?
mustn't they be unfettering? 	mustn't I have unfettered?
mustn't you have unfettered?
mustn't she have unfettered?
mustn't we have unfettered?
mustn't you have unfettered?
mustn't they have unfettered? 	mustn't I have been unfettering?
mustn't you have been unfettering?
mustn't she have been unfettering?
mustn't we have been unfettering?
mustn't you have been unfettering?
mustn't they have been unfettering?