English verb conjugation
CAN BARNSTORM

Regular verb: barnstorm - barnstormed - barnstormed

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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