English verb conjugation
MUST BARNSTORM

Regular verb: barnstorm - barnstormed - barnstormed

Affirmation

Simple form	V-ing form
I must barnstorm you must barnstorm she must barnstorm we must barnstorm you must barnstorm they must barnstorm	I must be barnstorming you must be barnstorming she must be barnstorming we must be barnstorming you must be barnstorming they must be barnstorming
Perfect	V-ing perfect
I must have barnstormed you must have barnstormed she must have barnstormed we must have barnstormed you must have barnstormed they must have barnstormed	I must have been barnstorming you must have been barnstorming she must have been barnstorming we must have been barnstorming you must have been barnstorming they must have been barnstorming

Negation

Simple form	V-ing form
I mustn't barnstorm you mustn't barnstorm she mustn't barnstorm we mustn't barnstorm you mustn't barnstorm they mustn't barnstorm	I mustn't be barnstorming you mustn't be barnstorming she mustn't be barnstorming we mustn't be barnstorming you mustn't be barnstorming they mustn't be barnstorming
Perfect	V-ing perfect
I mustn't have barnstormed you mustn't have barnstormed she mustn't have barnstormed we mustn't have barnstormed you mustn't have barnstormed they mustn't have barnstormed	I mustn't have been barnstorming you mustn't have been barnstorming she mustn't have been barnstorming we mustn't have been barnstorming you mustn't have been barnstorming they mustn't have been barnstorming

Interrogative form

Simple form	V-ing form
must I barnstorm? must you barnstorm? must she barnstorm? must we barnstorm? must you barnstorm? must they barnstorm?	must I be barnstorming? must you be barnstorming? must she be barnstorming? must we be barnstorming? must you be barnstorming? must they be barnstorming?
Perfect	V-ing perfect
must I have barnstormed? must you have barnstormed? must she have barnstormed? must we have barnstormed? must you have barnstormed? must they have barnstormed?	must I have been barnstorming? must you have been barnstorming? must she have been barnstorming? must we have been barnstorming? must you have been barnstorming? must they have been barnstorming?

Interro-negative form

Simple form	V-ing form
mustn't I barnstorm? mustn't you barnstorm? mustn't she barnstorm? mustn't we barnstorm? mustn't you barnstorm? mustn't they barnstorm?	mustn't I be barnstorming? mustn't you be barnstorming? mustn't she be barnstorming? mustn't we be barnstorming? mustn't you be barnstorming? mustn't they be barnstorming?
Perfect	V-ing perfect
mustn't I have barnstormed? mustn't you have barnstormed? mustn't she have barnstormed? mustn't we have barnstormed? mustn't you have barnstormed? mustn't they have barnstormed?	mustn't I have been barnstorming? mustn't you have been barnstorming? mustn't she have been barnstorming? mustn't we have been barnstorming? mustn't you have been barnstorming? mustn't they have been barnstorming?