English verb conjugation
COULD STOOK

Regular verb: stook - stooked - stooked

Affirmation

Simple form	V-ing form
I could stook you could stook she could stook we could stook you could stook they could stook	I could be stooking you could be stooking she 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 she 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 she 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 couldn't stook you couldn't stook she couldn't stook we couldn't stook you couldn't stook they couldn't stook	I couldn't be stooking you couldn't be stooking she couldn't be stooking we couldn't be stooking you couldn't be stooking they couldn't be stooking
Perfect	V-ing perfect
I couldn't have stooked you couldn't have stooked she couldn't have stooked we couldn't have stooked you couldn't have stooked they couldn't have stooked	I couldn't have been stooking you couldn't have been stooking she couldn't have been stooking we couldn't have been stooking you couldn't have been stooking they couldn't have been stooking

Interrogative form

Simple form	V-ing form
could I stook? could you stook? could she stook? could we stook? could you stook? could they stook?	could I be stooking? could you be stooking? could she 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 she 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 she 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
couldn't I stook? couldn't you stook? couldn't she stook? couldn't we stook? couldn't you stook? couldn't they stook?	couldn't I be stooking? couldn't you be stooking? couldn't she be stooking? couldn't we be stooking? couldn't you be stooking? couldn't they be stooking?
Perfect	V-ing perfect
couldn't I have stooked? couldn't you have stooked? couldn't she have stooked? couldn't we have stooked? couldn't you have stooked? couldn't they have stooked?	couldn't I have been stooking? couldn't you have been stooking? couldn't she have been stooking? couldn't we have been stooking? couldn't you have been stooking? couldn't they have been stooking?