I could hunt you could hunt he could hunt we could hunt you could hunt they could hunt
V-ing form
I could be hunting you could be hunting he could be hunting we could be hunting you could be hunting they could be hunting
Perfect
I could have hunted you could have hunted he could have hunted we could have hunted you could have hunted they could have hunted
V-ing perfect
I could have been hunting you could have been hunting he could have been hunting we could have been hunting you could have been hunting they could have been hunting
Negation
Simple form
I couldn't hunt you couldn't hunt he couldn't hunt we couldn't hunt you couldn't hunt they couldn't hunt
V-ing form
I couldn't be hunting you couldn't be hunting he couldn't be hunting we couldn't be hunting you couldn't be hunting they couldn't be hunting
Perfect
I couldn't have hunted you couldn't have hunted he couldn't have hunted we couldn't have hunted you couldn't have hunted they couldn't have hunted
V-ing perfect
I couldn't have been hunting you couldn't have been hunting he couldn't have been hunting we couldn't have been hunting you couldn't have been hunting they couldn't have been hunting
Interrogative form
Simple form
could I hunt? could you hunt? could he hunt? could we hunt? could you hunt? could they hunt?
V-ing form
could I be hunting? could you be hunting? could he be hunting? could we be hunting? could you be hunting? could they be hunting?
Perfect
could I have hunted? could you have hunted? could he have hunted? could we have hunted? could you have hunted? could they have hunted?
V-ing perfect
could I have been hunting? could you have been hunting? could he have been hunting? could we have been hunting? could you have been hunting? could they have been hunting?
Interro-negative form
Simple form
couldn't I hunt? couldn't you hunt? couldn't he hunt? couldn't we hunt? couldn't you hunt? couldn't they hunt?
V-ing form
couldn't I be hunting? couldn't you be hunting? couldn't he be hunting? couldn't we be hunting? couldn't you be hunting? couldn't they be hunting?
Perfect
couldn't I have hunted? couldn't you have hunted? couldn't he have hunted? couldn't we have hunted? couldn't you have hunted? couldn't they have hunted?
V-ing perfect
couldn't I have been hunting? couldn't you have been hunting? couldn't he have been hunting? couldn't we have been hunting? couldn't you have been hunting? couldn't they have been hunting?