I could deride you could deride he could deride we could deride you could deride they could deride
V-ing form
I could be deriding you could be deriding he could be deriding we could be deriding you could be deriding they could be deriding
Perfect
I could have derided you could have derided he could have derided we could have derided you could have derided they could have derided
V-ing perfect
I could have been deriding you could have been deriding he could have been deriding we could have been deriding you could have been deriding they could have been deriding
Negation
Simple form
I could not deride you could not deride he could not deride we could not deride you could not deride they could not deride
V-ing form
I could not be deriding you could not be deriding he could not be deriding we could not be deriding you could not be deriding they could not be deriding
Perfect
I could not have derided you could not have derided he could not have derided we could not have derided you could not have derided they could not have derided
V-ing perfect
I could not have been deriding you could not have been deriding he could not have been deriding we could not have been deriding you could not have been deriding they could not have been deriding
Interrogative form
Simple form
could I deride? could you deride? could he deride? could we deride? could you deride? could they deride?
V-ing form
could I be deriding? could you be deriding? could he be deriding? could we be deriding? could you be deriding? could they be deriding?
Perfect
could I have derided? could you have derided? could he have derided? could we have derided? could you have derided? could they have derided?
V-ing perfect
could I have been deriding? could you have been deriding? could he have been deriding? could we have been deriding? could you have been deriding? could they have been deriding?
Interro-negative form
Simple form
could I not deride? could you not deride? could he not deride? could we not deride? could you not deride? could they not deride?
V-ing form
could I not be deriding? could you not be deriding? could he not be deriding? could we not be deriding? could you not be deriding? could they not be deriding?
Perfect
could I not have derided? could you not have derided? could he not have derided? could we not have derided? could you not have derided? could they not have derided?
V-ing perfect
could I not have been deriding? could you not have been deriding? could he not have been deriding? could we not have been deriding? could you not have been deriding? could they not have been deriding?