English verb conjugation
CAN ROOK

Regular verb: rook - rooked - rooked

Affirmation

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

Negation

Simple form	V-ing form
I cannot rook you cannot rook he cannot rook we cannot rook you cannot rook they cannot rook	I cannot be rooking you cannot be rooking he cannot be rooking we cannot be rooking you cannot be rooking they cannot be rooking
Perfect	V-ing perfect
I cannot have rooked you cannot have rooked he cannot have rooked we cannot have rooked you cannot have rooked they cannot have rooked	I cannot have been rooking you cannot have been rooking he cannot have been rooking we cannot have been rooking you cannot have been rooking they cannot have been rooking

Interrogative form

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

Interro-negative form

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