could burble
Verbo regular: burble - burbled- burbled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could burble
you could burble
she could burble
we could burble
you could burble
they could burble 	I could be burbling
you could be burbling
she could be burbling
we could be burbling
you could be burbling
they could be burbling	I could have burbled
you could have burbled
she could have burbled
we could have burbled
you could have burbled
they could have burbled	I could have been burbling
you could have been burbling
she could have been burbling
we could have been burbling
you could have been burbling
they could have been burbling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not burble
you could not burble
she could not burble
we could not burble
you could not burble
they could not burble 	I could not be burbling
you could not be burbling
she could not be burbling
we could not be burbling
you could not be burbling
they could not be burbling	I could not have burbled
you could not have burbled
she could not have burbled
we could not have burbled
you could not have burbled
they could not have burbled	I could not have been burbling
you could not have been burbling
she could not have been burbling
we could not have been burbling
you could not have been burbling
they could not have been burbling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I burble?
could you burble?
could she burble?
could we burble?
could you burble?
could they burble? 	could I be burbling?
could you be burbling?
could she be burbling?
could we be burbling?
could you be burbling?
could they be burbling? 	could I have burbled?
could you have burbled?
could she have burbled?
could we have burbled?
could you have burbled?
could they have burbled? 	could I have been burbling?
could you have been burbling?
could she have been burbling?
could we have been burbling?
could you have been burbling?
could they have been burbling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not burble?
could you not burble?
could she not burble?
could we not burble?
could you not burble?
could they not burble? 	could I not be burbling?
could you not be burbling?
could she not be burbling?
could we not be burbling?
could you not be burbling?
could they not be burbling? 	could I not have burbled?
could you not have burbled?
could she not have burbled?
could we not have burbled?
could you not have burbled?
could they not have burbled? 	could I not have been burbling?
could you not have been burbling?
could she not have been burbling?
could we not have been burbling?
could you not have been burbling?
could they not have been burbling?