English verb conjugation
COULD COCOON

Regular verb: cocoon - cocooned - cocooned

Affirmation

Simple form	V-ing form
I could cocoon you could cocoon he could cocoon we could cocoon you could cocoon they could cocoon	I could be cocooning you could be cocooning he could be cocooning we could be cocooning you could be cocooning they could be cocooning
Perfect	V-ing perfect
I could have cocooned you could have cocooned he could have cocooned we could have cocooned you could have cocooned they could have cocooned	I could have been cocooning you could have been cocooning he could have been cocooning we could have been cocooning you could have been cocooning they could have been cocooning

Negation

Simple form	V-ing form
I could not cocoon you could not cocoon he could not cocoon we could not cocoon you could not cocoon they could not cocoon	I could not be cocooning you could not be cocooning he could not be cocooning we could not be cocooning you could not be cocooning they could not be cocooning
Perfect	V-ing perfect
I could not have cocooned you could not have cocooned he could not have cocooned we could not have cocooned you could not have cocooned they could not have cocooned	I could not have been cocooning you could not have been cocooning he could not have been cocooning we could not have been cocooning you could not have been cocooning they could not have been cocooning

Interrogative form

Simple form	V-ing form
could I cocoon? could you cocoon? could he cocoon? could we cocoon? could you cocoon? could they cocoon?	could I be cocooning? could you be cocooning? could he be cocooning? could we be cocooning? could you be cocooning? could they be cocooning?
Perfect	V-ing perfect
could I have cocooned? could you have cocooned? could he have cocooned? could we have cocooned? could you have cocooned? could they have cocooned?	could I have been cocooning? could you have been cocooning? could he have been cocooning? could we have been cocooning? could you have been cocooning? could they have been cocooning?

Interro-negative form

Simple form	V-ing form
could I not cocoon? could you not cocoon? could he not cocoon? could we not cocoon? could you not cocoon? could they not cocoon?	could I not be cocooning? could you not be cocooning? could he not be cocooning? could we not be cocooning? could you not be cocooning? could they not be cocooning?
Perfect	V-ing perfect
could I not have cocooned? could you not have cocooned? could he not have cocooned? could we not have cocooned? could you not have cocooned? could they not have cocooned?	could I not have been cocooning? could you not have been cocooning? could he not have been cocooning? could we not have been cocooning? could you not have been cocooning? could they not have been cocooning?