I can moan you can moan he can moan we can moan you can moan they can moan
V-ing form
I can be moaning you can be moaning he can be moaning we can be moaning you can be moaning they can be moaning
Perfect
I can have moaned you can have moaned he can have moaned we can have moaned you can have moaned they can have moaned
V-ing perfect
I can have been moaning you can have been moaning he can have been moaning we can have been moaning you can have been moaning they can have been moaning
Negation
Simple form
I cannot moan you cannot moan he cannot moan we cannot moan you cannot moan they cannot moan
V-ing form
I cannot be moaning you cannot be moaning he cannot be moaning we cannot be moaning you cannot be moaning they cannot be moaning
Perfect
I cannot have moaned you cannot have moaned he cannot have moaned we cannot have moaned you cannot have moaned they cannot have moaned
V-ing perfect
I cannot have been moaning you cannot have been moaning he cannot have been moaning we cannot have been moaning you cannot have been moaning they cannot have been moaning
Interrogative form
Simple form
can I moan? can you moan? can he moan? can we moan? can you moan? can they moan?
V-ing form
can I be moaning? can you be moaning? can he be moaning? can we be moaning? can you be moaning? can they be moaning?
Perfect
can I have moaned? can you have moaned? can he have moaned? can we have moaned? can you have moaned? can they have moaned?
V-ing perfect
can I have been moaning? can you have been moaning? can he have been moaning? can we have been moaning? can you have been moaning? can they have been moaning?
Interro-negative form
Simple form
can I not moan? can you not moan? can he not moan? can we not moan? can you not moan? can they not moan?
V-ing form
can I not be moaning? can you not be moaning? can he not be moaning? can we not be moaning? can you not be moaning? can they not be moaning?
Perfect
can I not have moaned? can you not have moaned? can he not have moaned? can we not have moaned? can you not have moaned? can they not have moaned?
V-ing perfect
can I not have been moaning? can you not have been moaning? can he not have been moaning? can we not have been moaning? can you not have been moaning? can they not have been moaning?