must unbind
Irregular verb: unbind - unbound- unbound

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must unbind
you must unbind
she must unbind
we must unbind
you must unbind
they must unbind 	I must be unbinding
you must be unbinding
she must be unbinding
we must be unbinding
you must be unbinding
they must be unbinding	I must have unbound
you must have unbound
she must have unbound
we must have unbound
you must have unbound
they must have unbound	I must have been unbinding
you must have been unbinding
she must have been unbinding
we must have been unbinding
you must have been unbinding
they must have been unbinding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't unbind
you mustn't unbind
she mustn't unbind
we mustn't unbind
you mustn't unbind
they mustn't unbind 	I mustn't be unbinding
you mustn't be unbinding
she mustn't be unbinding
we mustn't be unbinding
you mustn't be unbinding
they mustn't be unbinding	I mustn't have unbound
you mustn't have unbound
she mustn't have unbound
we mustn't have unbound
you mustn't have unbound
they mustn't have unbound	I mustn't have been unbinding
you mustn't have been unbinding
she mustn't have been unbinding
we mustn't have been unbinding
you mustn't have been unbinding
they mustn't have been unbinding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I unbind?
must you unbind?
must she unbind?
must we unbind?
must you unbind?
must they unbind? 	must I be unbinding?
must you be unbinding?
must she be unbinding?
must we be unbinding?
must you be unbinding?
must they be unbinding? 	must I have unbound?
must you have unbound?
must she have unbound?
must we have unbound?
must you have unbound?
must they have unbound? 	must I have been unbinding?
must you have been unbinding?
must she have been unbinding?
must we have been unbinding?
must you have been unbinding?
must they have been unbinding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I unbind?
mustn't you unbind?
mustn't she unbind?
mustn't we unbind?
mustn't you unbind?
mustn't they unbind? 	mustn't I be unbinding?
mustn't you be unbinding?
mustn't she be unbinding?
mustn't we be unbinding?
mustn't you be unbinding?
mustn't they be unbinding? 	mustn't I have unbound?
mustn't you have unbound?
mustn't she have unbound?
mustn't we have unbound?
mustn't you have unbound?
mustn't they have unbound? 	mustn't I have been unbinding?
mustn't you have been unbinding?
mustn't she have been unbinding?
mustn't we have been unbinding?
mustn't you have been unbinding?
mustn't they have been unbinding?