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