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 can't moan you can't moan he can't moan we can't moan you can't moan they can't moan
V-ing form
I can't be moaning you can't be moaning he can't be moaning we can't be moaning you can't be moaning they can't be moaning
Perfect
I can't have moaned you can't have moaned he can't have moaned we can't have moaned you can't have moaned they can't have moaned
V-ing perfect
I can't have been moaning you can't have been moaning he can't have been moaning we can't have been moaning you can't have been moaning they can't 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't I moan? can't you moan? can't he moan? can't we moan? can't you moan? can't they moan?
V-ing form
can't I be moaning? can't you be moaning? can't he be moaning? can't we be moaning? can't you be moaning? can't they be moaning?
Perfect
can't I have moaned? can't you have moaned? can't he have moaned? can't we have moaned? can't you have moaned? can't they have moaned?
V-ing perfect
can't I have been moaning? can't you have been moaning? can't he have been moaning? can't we have been moaning? can't you have been moaning? can't they have been moaning?