English verb conjugation
COULD DERIDE

Regular verb: deride - derided - derided

Affirmation

Simple form	V-ing form
I could deride you could deride he could deride we could deride you could deride they could deride	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	V-ing 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	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	V-ing form
I couldn't deride you couldn't deride he couldn't deride we couldn't deride you couldn't deride they couldn't deride	I couldn't be deriding you couldn't be deriding he couldn't be deriding we couldn't be deriding you couldn't be deriding they couldn't be deriding
Perfect	V-ing perfect
I couldn't have derided you couldn't have derided he couldn't have derided we couldn't have derided you couldn't have derided they couldn't have derided	I couldn't have been deriding you couldn't have been deriding he couldn't have been deriding we couldn't have been deriding you couldn't have been deriding they couldn't have been deriding

Interrogative form

Simple form	V-ing form
could I deride? could you deride? could he deride? could we deride? could you deride? could they deride?	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	V-ing 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?	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	V-ing form
couldn't I deride? couldn't you deride? couldn't he deride? couldn't we deride? couldn't you deride? couldn't they deride?	couldn't I be deriding? couldn't you be deriding? couldn't he be deriding? couldn't we be deriding? couldn't you be deriding? couldn't they be deriding?
Perfect	V-ing perfect
couldn't I have derided? couldn't you have derided? couldn't he have derided? couldn't we have derided? couldn't you have derided? couldn't they have derided?	couldn't I have been deriding? couldn't you have been deriding? couldn't he have been deriding? couldn't we have been deriding? couldn't you have been deriding? couldn't they have been deriding?