English verb conjugation
COULD STOOK

Regular verb: stook - stooked - stooked

Affirmation

Simple form	V-ing form
I could stook you could stook he could stook we could stook you could stook they could stook	I could be stooking you could be stooking he could be stooking we could be stooking you could be stooking they could be stooking
Perfect	V-ing perfect
I could have stooked you could have stooked he could have stooked we could have stooked you could have stooked they could have stooked	I could have been stooking you could have been stooking he could have been stooking we could have been stooking you could have been stooking they could have been stooking

Negation

Simple form	V-ing form
I could not stook you could not stook he could not stook we could not stook you could not stook they could not stook	I could not be stooking you could not be stooking he could not be stooking we could not be stooking you could not be stooking they could not be stooking
Perfect	V-ing perfect
I could not have stooked you could not have stooked he could not have stooked we could not have stooked you could not have stooked they could not have stooked	I could not have been stooking you could not have been stooking he could not have been stooking we could not have been stooking you could not have been stooking they could not have been stooking

Interrogative form

Simple form	V-ing form
could I stook? could you stook? could he stook? could we stook? could you stook? could they stook?	could I be stooking? could you be stooking? could he be stooking? could we be stooking? could you be stooking? could they be stooking?
Perfect	V-ing perfect
could I have stooked? could you have stooked? could he have stooked? could we have stooked? could you have stooked? could they have stooked?	could I have been stooking? could you have been stooking? could he have been stooking? could we have been stooking? could you have been stooking? could they have been stooking?

Interro-negative form

Simple form	V-ing form
could I not stook? could you not stook? could he not stook? could we not stook? could you not stook? could they not stook?	could I not be stooking? could you not be stooking? could he not be stooking? could we not be stooking? could you not be stooking? could they not be stooking?
Perfect	V-ing perfect
could I not have stooked? could you not have stooked? could he not have stooked? could we not have stooked? could you not have stooked? could they not have stooked?	could I not have been stooking? could you not have been stooking? could he not have been stooking? could we not have been stooking? could you not have been stooking? could they not have been stooking?