I could veer you could veer he could veer we could veer you could veer they could veer
V-ing form
I could be veering you could be veering he could be veering we could be veering you could be veering they could be veering
Perfect
I could have veered you could have veered he could have veered we could have veered you could have veered they could have veered
V-ing perfect
I could have been veering you could have been veering he could have been veering we could have been veering you could have been veering they could have been veering
Negation
Simple form
I could not veer you could not veer he could not veer we could not veer you could not veer they could not veer
V-ing form
I could not be veering you could not be veering he could not be veering we could not be veering you could not be veering they could not be veering
Perfect
I could not have veered you could not have veered he could not have veered we could not have veered you could not have veered they could not have veered
V-ing perfect
I could not have been veering you could not have been veering he could not have been veering we could not have been veering you could not have been veering they could not have been veering
Interrogative form
Simple form
could I veer? could you veer? could he veer? could we veer? could you veer? could they veer?
V-ing form
could I be veering? could you be veering? could he be veering? could we be veering? could you be veering? could they be veering?
Perfect
could I have veered? could you have veered? could he have veered? could we have veered? could you have veered? could they have veered?
V-ing perfect
could I have been veering? could you have been veering? could he have been veering? could we have been veering? could you have been veering? could they have been veering?
Interro-negative form
Simple form
could I not veer? could you not veer? could he not veer? could we not veer? could you not veer? could they not veer?
V-ing form
could I not be veering? could you not be veering? could he not be veering? could we not be veering? could you not be veering? could they not be veering?
Perfect
could I not have veered? could you not have veered? could he not have veered? could we not have veered? could you not have veered? could they not have veered?
V-ing perfect
could I not have been veering? could you not have been veering? could he not have been veering? could we not have been veering? could you not have been veering? could they not have been veering?