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