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 couldn't veer you couldn't veer he couldn't veer we couldn't veer you couldn't veer they couldn't veer
V-ing form
I couldn't be veering you couldn't be veering he couldn't be veering we couldn't be veering you couldn't be veering they couldn't be veering
Perfect
I couldn't have veered you couldn't have veered he couldn't have veered we couldn't have veered you couldn't have veered they couldn't have veered
V-ing perfect
I couldn't have been veering you couldn't have been veering he couldn't have been veering we couldn't have been veering you couldn't have been veering they couldn't 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
couldn't I veer? couldn't you veer? couldn't he veer? couldn't we veer? couldn't you veer? couldn't they veer?
V-ing form
couldn't I be veering? couldn't you be veering? couldn't he be veering? couldn't we be veering? couldn't you be veering? couldn't they be veering?
Perfect
couldn't I have veered? couldn't you have veered? couldn't he have veered? couldn't we have veered? couldn't you have veered? couldn't they have veered?
V-ing perfect
couldn't I have been veering? couldn't you have been veering? couldn't he have been veering? couldn't we have been veering? couldn't you have been veering? couldn't they have been veering?