I can release you can release he can release we can release you can release they can release
V-ing form
I can be releasing you can be releasing he can be releasing we can be releasing you can be releasing they can be releasing
Perfect
I can have released you can have released he can have released we can have released you can have released they can have released
V-ing perfect
I can have been releasing you can have been releasing he can have been releasing we can have been releasing you can have been releasing they can have been releasing
Negation
Simple form
I cannot release you cannot release he cannot release we cannot release you cannot release they cannot release
V-ing form
I cannot be releasing you cannot be releasing he cannot be releasing we cannot be releasing you cannot be releasing they cannot be releasing
Perfect
I cannot have released you cannot have released he cannot have released we cannot have released you cannot have released they cannot have released
V-ing perfect
I cannot have been releasing you cannot have been releasing he cannot have been releasing we cannot have been releasing you cannot have been releasing they cannot have been releasing
Interrogative form
Simple form
can I release? can you release? can he release? can we release? can you release? can they release?
V-ing form
can I be releasing? can you be releasing? can he be releasing? can we be releasing? can you be releasing? can they be releasing?
Perfect
can I have released? can you have released? can he have released? can we have released? can you have released? can they have released?
V-ing perfect
can I have been releasing? can you have been releasing? can he have been releasing? can we have been releasing? can you have been releasing? can they have been releasing?
Interro-negative form
Simple form
can I not release? can you not release? can he not release? can we not release? can you not release? can they not release?
V-ing form
can I not be releasing? can you not be releasing? can he not be releasing? can we not be releasing? can you not be releasing? can they not be releasing?
Perfect
can I not have released? can you not have released? can he not have released? can we not have released? can you not have released? can they not have released?
V-ing perfect
can I not have been releasing? can you not have been releasing? can he not have been releasing? can we not have been releasing? can you not have been releasing? can they not have been releasing?