English verb conjugation
COULD COCOON

Regular verb: cocoon - cocooned - cocooned

Affirmation

Simple form	V-ing form
I could cocoon you could cocoon she could cocoon we could cocoon you could cocoon they could cocoon	I could be cocooning you could be cocooning she 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 she 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 she 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 couldn't cocoon you couldn't cocoon she couldn't cocoon we couldn't cocoon you couldn't cocoon they couldn't cocoon	I couldn't be cocooning you couldn't be cocooning she couldn't be cocooning we couldn't be cocooning you couldn't be cocooning they couldn't be cocooning
Perfect	V-ing perfect
I couldn't have cocooned you couldn't have cocooned she couldn't have cocooned we couldn't have cocooned you couldn't have cocooned they couldn't have cocooned	I couldn't have been cocooning you couldn't have been cocooning she couldn't have been cocooning we couldn't have been cocooning you couldn't have been cocooning they couldn't have been cocooning

Interrogative form

Simple form	V-ing form
could I cocoon? could you cocoon? could she cocoon? could we cocoon? could you cocoon? could they cocoon?	could I be cocooning? could you be cocooning? could she 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 she 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 she 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
couldn't I cocoon? couldn't you cocoon? couldn't she cocoon? couldn't we cocoon? couldn't you cocoon? couldn't they cocoon?	couldn't I be cocooning? couldn't you be cocooning? couldn't she be cocooning? couldn't we be cocooning? couldn't you be cocooning? couldn't they be cocooning?
Perfect	V-ing perfect
couldn't I have cocooned? couldn't you have cocooned? couldn't she have cocooned? couldn't we have cocooned? couldn't you have cocooned? couldn't they have cocooned?	couldn't I have been cocooning? couldn't you have been cocooning? couldn't she have been cocooning? couldn't we have been cocooning? couldn't you have been cocooning? couldn't they have been cocooning?