must unblock
Regular verb: unblock - unblocked- unblocked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must unblock
you must unblock
he must unblock
we must unblock
you must unblock
they must unblock 	I must be unblocking
you must be unblocking
he must be unblocking
we must be unblocking
you must be unblocking
they must be unblocking	I must have unblocked
you must have unblocked
he must have unblocked
we must have unblocked
you must have unblocked
they must have unblocked	I must have been unblocking
you must have been unblocking
he must have been unblocking
we must have been unblocking
you must have been unblocking
they must have been unblocking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't unblock
you mustn't unblock
he mustn't unblock
we mustn't unblock
you mustn't unblock
they mustn't unblock 	I mustn't be unblocking
you mustn't be unblocking
he mustn't be unblocking
we mustn't be unblocking
you mustn't be unblocking
they mustn't be unblocking	I mustn't have unblocked
you mustn't have unblocked
he mustn't have unblocked
we mustn't have unblocked
you mustn't have unblocked
they mustn't have unblocked	I mustn't have been unblocking
you mustn't have been unblocking
he mustn't have been unblocking
we mustn't have been unblocking
you mustn't have been unblocking
they mustn't have been unblocking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I unblock?
must you unblock?
must he unblock?
must we unblock?
must you unblock?
must they unblock? 	must I be unblocking?
must you be unblocking?
must he be unblocking?
must we be unblocking?
must you be unblocking?
must they be unblocking? 	must I have unblocked?
must you have unblocked?
must he have unblocked?
must we have unblocked?
must you have unblocked?
must they have unblocked? 	must I have been unblocking?
must you have been unblocking?
must he have been unblocking?
must we have been unblocking?
must you have been unblocking?
must they have been unblocking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I unblock?
mustn't you unblock?
mustn't he unblock?
mustn't we unblock?
mustn't you unblock?
mustn't they unblock? 	mustn't I be unblocking?
mustn't you be unblocking?
mustn't he be unblocking?
mustn't we be unblocking?
mustn't you be unblocking?
mustn't they be unblocking? 	mustn't I have unblocked?
mustn't you have unblocked?
mustn't he have unblocked?
mustn't we have unblocked?
mustn't you have unblocked?
mustn't they have unblocked? 	mustn't I have been unblocking?
mustn't you have been unblocking?
mustn't he have been unblocking?
mustn't we have been unblocking?
mustn't you have been unblocking?
mustn't they have been unblocking?