must release
Regular verb: release - released- released

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must release
you must release
he must release
we must release
you must release
they must release 	I must be releasing
you must be releasing
he must be releasing
we must be releasing
you must be releasing
they must be releasing	I must have released
you must have released
he must have released
we must have released
you must have released
they must have released	I must have been releasing
you must have been releasing
he must have been releasing
we must have been releasing
you must have been releasing
they must have been releasing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't release
you mustn't release
he mustn't release
we mustn't release
you mustn't release
they mustn't release 	I mustn't be releasing
you mustn't be releasing
he mustn't be releasing
we mustn't be releasing
you mustn't be releasing
they mustn't be releasing	I mustn't have released
you mustn't have released
he mustn't have released
we mustn't have released
you mustn't have released
they mustn't have released	I mustn't have been releasing
you mustn't have been releasing
he mustn't have been releasing
we mustn't have been releasing
you mustn't have been releasing
they mustn't have been releasing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I release?
must you release?
must he release?
must we release?
must you release?
must they release? 	must I be releasing?
must you be releasing?
must he be releasing?
must we be releasing?
must you be releasing?
must they be releasing? 	must I have released?
must you have released?
must he have released?
must we have released?
must you have released?
must they have released? 	must I have been releasing?
must you have been releasing?
must he have been releasing?
must we have been releasing?
must you have been releasing?
must they have been releasing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I release?
mustn't you release?
mustn't he release?
mustn't we release?
mustn't you release?
mustn't they release? 	mustn't I be releasing?
mustn't you be releasing?
mustn't he be releasing?
mustn't we be releasing?
mustn't you be releasing?
mustn't they be releasing? 	mustn't I have released?
mustn't you have released?
mustn't he have released?
mustn't we have released?
mustn't you have released?
mustn't they have released? 	mustn't I have been releasing?
mustn't you have been releasing?
mustn't he have been releasing?
mustn't we have been releasing?
mustn't you have been releasing?
mustn't they have been releasing?