could barnstorm
Verbo regular: barnstorm - barnstormed- barnstormed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could barnstorm
you could barnstorm
he could barnstorm
we could barnstorm
you could barnstorm
they could barnstorm 	I could be barnstorming
you could be barnstorming
he could be barnstorming
we could be barnstorming
you could be barnstorming
they could be barnstorming	I could have barnstormed
you could have barnstormed
he could have barnstormed
we could have barnstormed
you could have barnstormed
they could have barnstormed	I could have been barnstorming
you could have been barnstorming
he could have been barnstorming
we could have been barnstorming
you could have been barnstorming
they could have been barnstorming	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not barnstorm
you could not barnstorm
he could not barnstorm
we could not barnstorm
you could not barnstorm
they could not barnstorm 	I could not be barnstorming
you could not be barnstorming
he could not be barnstorming
we could not be barnstorming
you could not be barnstorming
they could not be barnstorming	I could not have barnstormed
you could not have barnstormed
he could not have barnstormed
we could not have barnstormed
you could not have barnstormed
they could not have barnstormed	I could not have been barnstorming
you could not have been barnstorming
he could not have been barnstorming
we could not have been barnstorming
you could not have been barnstorming
they could not have been barnstorming	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I barnstorm?
could you barnstorm?
could he barnstorm?
could we barnstorm?
could you barnstorm?
could they barnstorm? 	could I be barnstorming?
could you be barnstorming?
could he be barnstorming?
could we be barnstorming?
could you be barnstorming?
could they be barnstorming? 	could I have barnstormed?
could you have barnstormed?
could he have barnstormed?
could we have barnstormed?
could you have barnstormed?
could they have barnstormed? 	could I have been barnstorming?
could you have been barnstorming?
could he have been barnstorming?
could we have been barnstorming?
could you have been barnstorming?
could they have been barnstorming? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not barnstorm?
could you not barnstorm?
could he not barnstorm?
could we not barnstorm?
could you not barnstorm?
could they not barnstorm? 	could I not be barnstorming?
could you not be barnstorming?
could he not be barnstorming?
could we not be barnstorming?
could you not be barnstorming?
could they not be barnstorming? 	could I not have barnstormed?
could you not have barnstormed?
could he not have barnstormed?
could we not have barnstormed?
could you not have barnstormed?
could they not have barnstormed? 	could I not have been barnstorming?
could you not have been barnstorming?
could he not have been barnstorming?
could we not have been barnstorming?
could you not have been barnstorming?
could they not have been barnstorming?