English verb conjugation
MUST COCOON

Regular verb: cocoon - cocooned - cocooned

Affirmation

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

Negation

Simple form	V-ing form
I mustn't cocoon you mustn't cocoon he mustn't cocoon we mustn't cocoon you mustn't cocoon they mustn't cocoon	I mustn't be cocooning you mustn't be cocooning he mustn't be cocooning we mustn't be cocooning you mustn't be cocooning they mustn't be cocooning
Perfect	V-ing perfect
I mustn't have cocooned you mustn't have cocooned he mustn't have cocooned we mustn't have cocooned you mustn't have cocooned they mustn't have cocooned	I mustn't have been cocooning you mustn't have been cocooning he mustn't have been cocooning we mustn't have been cocooning you mustn't have been cocooning they mustn't have been cocooning

Interrogative form

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

Interro-negative form

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