I could wainscot you could wainscot he could wainscot we could wainscot you could wainscot they could wainscot
V-ing form
I could be wainscoting you could be wainscoting he could be wainscoting we could be wainscoting you could be wainscoting they could be wainscoting
Perfect
I could have wainscoted you could have wainscoted he could have wainscoted we could have wainscoted you could have wainscoted they could have wainscoted
V-ing perfect
I could have been wainscoting you could have been wainscoting he could have been wainscoting we could have been wainscoting you could have been wainscoting they could have been wainscoting
Negation
Simple form
I could not wainscot you could not wainscot he could not wainscot we could not wainscot you could not wainscot they could not wainscot
V-ing form
I could not be wainscoting you could not be wainscoting he could not be wainscoting we could not be wainscoting you could not be wainscoting they could not be wainscoting
Perfect
I could not have wainscoted you could not have wainscoted he could not have wainscoted we could not have wainscoted you could not have wainscoted they could not have wainscoted
V-ing perfect
I could not have been wainscoting you could not have been wainscoting he could not have been wainscoting we could not have been wainscoting you could not have been wainscoting they could not have been wainscoting
Interrogative form
Simple form
could I wainscot? could you wainscot? could he wainscot? could we wainscot? could you wainscot? could they wainscot?
V-ing form
could I be wainscoting? could you be wainscoting? could he be wainscoting? could we be wainscoting? could you be wainscoting? could they be wainscoting?
Perfect
could I have wainscoted? could you have wainscoted? could he have wainscoted? could we have wainscoted? could you have wainscoted? could they have wainscoted?
V-ing perfect
could I have been wainscoting? could you have been wainscoting? could he have been wainscoting? could we have been wainscoting? could you have been wainscoting? could they have been wainscoting?
Interro-negative form
Simple form
could I not wainscot? could you not wainscot? could he not wainscot? could we not wainscot? could you not wainscot? could they not wainscot?
V-ing form
could I not be wainscoting? could you not be wainscoting? could he not be wainscoting? could we not be wainscoting? could you not be wainscoting? could they not be wainscoting?
Perfect
could I not have wainscoted? could you not have wainscoted? could he not have wainscoted? could we not have wainscoted? could you not have wainscoted? could they not have wainscoted?
V-ing perfect
could I not have been wainscoting? could you not have been wainscoting? could he not have been wainscoting? could we not have been wainscoting? could you not have been wainscoting? could they not have been wainscoting?