English verb conjugation
COULD ROOK

Regular verb: rook - rooked - rooked

Affirmation

Simple form	V-ing form
I could rook you could rook she could rook we could rook you could rook they could rook	I could be rooking you could be rooking she could be rooking we could be rooking you could be rooking they could be rooking
Perfect	V-ing perfect
I could have rooked you could have rooked she could have rooked we could have rooked you could have rooked they could have rooked	I could have been rooking you could have been rooking she could have been rooking we could have been rooking you could have been rooking they could have been rooking

Negation

Simple form	V-ing form
I could not rook you could not rook she could not rook we could not rook you could not rook they could not rook	I could not be rooking you could not be rooking she could not be rooking we could not be rooking you could not be rooking they could not be rooking
Perfect	V-ing perfect
I could not have rooked you could not have rooked she could not have rooked we could not have rooked you could not have rooked they could not have rooked	I could not have been rooking you could not have been rooking she could not have been rooking we could not have been rooking you could not have been rooking they could not have been rooking

Interrogative form

Simple form	V-ing form
could I rook? could you rook? could she rook? could we rook? could you rook? could they rook?	could I be rooking? could you be rooking? could she be rooking? could we be rooking? could you be rooking? could they be rooking?
Perfect	V-ing perfect
could I have rooked? could you have rooked? could she have rooked? could we have rooked? could you have rooked? could they have rooked?	could I have been rooking? could you have been rooking? could she have been rooking? could we have been rooking? could you have been rooking? could they have been rooking?

Interro-negative form

Simple form	V-ing form
could I not rook? could you not rook? could she not rook? could we not rook? could you not rook? could they not rook?	could I not be rooking? could you not be rooking? could she not be rooking? could we not be rooking? could you not be rooking? could they not be rooking?
Perfect	V-ing perfect
could I not have rooked? could you not have rooked? could she not have rooked? could we not have rooked? could you not have rooked? could they not have rooked?	could I not have been rooking? could you not have been rooking? could she not have been rooking? could we not have been rooking? could you not have been rooking? could they not have been rooking?