I could haunt you could haunt he could haunt we could haunt you could haunt they could haunt
V-ing form
I could be haunting you could be haunting he could be haunting we could be haunting you could be haunting they could be haunting
Perfect
I could have haunted you could have haunted he could have haunted we could have haunted you could have haunted they could have haunted
V-ing perfect
I could have been haunting you could have been haunting he could have been haunting we could have been haunting you could have been haunting they could have been haunting
Negation
Simple form
I could not haunt you could not haunt he could not haunt we could not haunt you could not haunt they could not haunt
V-ing form
I could not be haunting you could not be haunting he could not be haunting we could not be haunting you could not be haunting they could not be haunting
Perfect
I could not have haunted you could not have haunted he could not have haunted we could not have haunted you could not have haunted they could not have haunted
V-ing perfect
I could not have been haunting you could not have been haunting he could not have been haunting we could not have been haunting you could not have been haunting they could not have been haunting
Interrogative form
Simple form
could I haunt? could you haunt? could he haunt? could we haunt? could you haunt? could they haunt?
V-ing form
could I be haunting? could you be haunting? could he be haunting? could we be haunting? could you be haunting? could they be haunting?
Perfect
could I have haunted? could you have haunted? could he have haunted? could we have haunted? could you have haunted? could they have haunted?
V-ing perfect
could I have been haunting? could you have been haunting? could he have been haunting? could we have been haunting? could you have been haunting? could they have been haunting?
Interro-negative form
Simple form
could I not haunt? could you not haunt? could he not haunt? could we not haunt? could you not haunt? could they not haunt?
V-ing form
could I not be haunting? could you not be haunting? could he not be haunting? could we not be haunting? could you not be haunting? could they not be haunting?
Perfect
could I not have haunted? could you not have haunted? could he not have haunted? could we not have haunted? could you not have haunted? could they not have haunted?
V-ing perfect
could I not have been haunting? could you not have been haunting? could he not have been haunting? could we not have been haunting? could you not have been haunting? could they not have been haunting?