I can release you can release she can release we can release you can release they can release
V-ing form
I can be releasing you can be releasing she can be releasing we can be releasing you can be releasing they can be releasing
Perfect
I can have released you can have released she 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 she can have been releasing we can have been releasing you can have been releasing they can have been releasing
Negation
Simple form
I can't release you can't release she can't release we can't release you can't release they can't release
V-ing form
I can't be releasing you can't be releasing she can't be releasing we can't be releasing you can't be releasing they can't be releasing
Perfect
I can't have released you can't have released she can't have released we can't have released you can't have released they can't have released
V-ing perfect
I can't have been releasing you can't have been releasing she can't have been releasing we can't have been releasing you can't have been releasing they can't have been releasing
Interrogative form
Simple form
can I release? can you release? can she release? can we release? can you release? can they release?
V-ing form
can I be releasing? can you be releasing? can she be releasing? can we be releasing? can you be releasing? can they be releasing?
Perfect
can I have released? can you have released? can she 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 she have been releasing? can we have been releasing? can you have been releasing? can they have been releasing?
Interro-negative form
Simple form
can't I release? can't you release? can't she release? can't we release? can't you release? can't they release?
V-ing form
can't I be releasing? can't you be releasing? can't she be releasing? can't we be releasing? can't you be releasing? can't they be releasing?
Perfect
can't I have released? can't you have released? can't she have released? can't we have released? can't you have released? can't they have released?
V-ing perfect
can't I have been releasing? can't you have been releasing? can't she have been releasing? can't we have been releasing? can't you have been releasing? can't they have been releasing?