I could overpower you could overpower he could overpower we could overpower you could overpower they could overpower
V-ing form
I could be overpowering you could be overpowering he could be overpowering we could be overpowering you could be overpowering they could be overpowering
Perfect
I could have overpowered you could have overpowered he could have overpowered we could have overpowered you could have overpowered they could have overpowered
V-ing perfect
I could have been overpowering you could have been overpowering he could have been overpowering we could have been overpowering you could have been overpowering they could have been overpowering
Negation
Simple form
I could not overpower you could not overpower he could not overpower we could not overpower you could not overpower they could not overpower
V-ing form
I could not be overpowering you could not be overpowering he could not be overpowering we could not be overpowering you could not be overpowering they could not be overpowering
Perfect
I could not have overpowered you could not have overpowered he could not have overpowered we could not have overpowered you could not have overpowered they could not have overpowered
V-ing perfect
I could not have been overpowering you could not have been overpowering he could not have been overpowering we could not have been overpowering you could not have been overpowering they could not have been overpowering
Interrogative form
Simple form
could I overpower? could you overpower? could he overpower? could we overpower? could you overpower? could they overpower?
V-ing form
could I be overpowering? could you be overpowering? could he be overpowering? could we be overpowering? could you be overpowering? could they be overpowering?
Perfect
could I have overpowered? could you have overpowered? could he have overpowered? could we have overpowered? could you have overpowered? could they have overpowered?
V-ing perfect
could I have been overpowering? could you have been overpowering? could he have been overpowering? could we have been overpowering? could you have been overpowering? could they have been overpowering?
Interro-negative form
Simple form
could I not overpower? could you not overpower? could he not overpower? could we not overpower? could you not overpower? could they not overpower?
V-ing form
could I not be overpowering? could you not be overpowering? could he not be overpowering? could we not be overpowering? could you not be overpowering? could they not be overpowering?
Perfect
could I not have overpowered? could you not have overpowered? could he not have overpowered? could we not have overpowered? could you not have overpowered? could they not have overpowered?
V-ing perfect
could I not have been overpowering? could you not have been overpowering? could he not have been overpowering? could we not have been overpowering? could you not have been overpowering? could they not have been overpowering?