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