I can mope you can mope she can mope we can mope you can mope they can mope
V-ing form
I can be moping you can be moping she can be moping we can be moping you can be moping they can be moping
Perfect
I can have moped you can have moped she can have moped we can have moped you can have moped they can have moped
V-ing perfect
I can have been moping you can have been moping she can have been moping we can have been moping you can have been moping they can have been moping
Negation
Simple form
I can't mope you can't mope she can't mope we can't mope you can't mope they can't mope
V-ing form
I can't be moping you can't be moping she can't be moping we can't be moping you can't be moping they can't be moping
Perfect
I can't have moped you can't have moped she can't have moped we can't have moped you can't have moped they can't have moped
V-ing perfect
I can't have been moping you can't have been moping she can't have been moping we can't have been moping you can't have been moping they can't have been moping
Interrogative form
Simple form
can I mope? can you mope? can she mope? can we mope? can you mope? can they mope?
V-ing form
can I be moping? can you be moping? can she be moping? can we be moping? can you be moping? can they be moping?
Perfect
can I have moped? can you have moped? can she have moped? can we have moped? can you have moped? can they have moped?
V-ing perfect
can I have been moping? can you have been moping? can she have been moping? can we have been moping? can you have been moping? can they have been moping?
Interro-negative form
Simple form
can't I mope? can't you mope? can't she mope? can't we mope? can't you mope? can't they mope?
V-ing form
can't I be moping? can't you be moping? can't she be moping? can't we be moping? can't you be moping? can't they be moping?
Perfect
can't I have moped? can't you have moped? can't she have moped? can't we have moped? can't you have moped? can't they have moped?
V-ing perfect
can't I have been moping? can't you have been moping? can't she have been moping? can't we have been moping? can't you have been moping? can't they have been moping?