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
he could burble
we could burble
you could burble
they could burble 	I could be burbling
you could be burbling
he could be burbling
we could be burbling
you could be burbling
they could be burbling	I could have burbled
you could have burbled
he 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
he 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 couldn't burble
you couldn't burble
he couldn't burble
we couldn't burble
you couldn't burble
they couldn't burble 	I couldn't be burbling
you couldn't be burbling
he couldn't be burbling
we couldn't be burbling
you couldn't be burbling
they couldn't be burbling	I couldn't have burbled
you couldn't have burbled
he couldn't have burbled
we couldn't have burbled
you couldn't have burbled
they couldn't have burbled	I couldn't have been burbling
you couldn't have been burbling
he couldn't have been burbling
we couldn't have been burbling
you couldn't have been burbling
they couldn't have been burbling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I burble?
could you burble?
could he burble?
could we burble?
could you burble?
could they burble? 	could I be burbling?
could you be burbling?
could he be burbling?
could we be burbling?
could you be burbling?
could they be burbling? 	could I have burbled?
could you have burbled?
could he 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 he 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 	
couldn't I burble?
couldn't you burble?
couldn't he burble?
couldn't we burble?
couldn't you burble?
couldn't they burble? 	couldn't I be burbling?
couldn't you be burbling?
couldn't he be burbling?
couldn't we be burbling?
couldn't you be burbling?
couldn't they be burbling? 	couldn't I have burbled?
couldn't you have burbled?
couldn't he have burbled?
couldn't we have burbled?
couldn't you have burbled?
couldn't they have burbled? 	couldn't I have been burbling?
couldn't you have been burbling?
couldn't he have been burbling?
couldn't we have been burbling?
couldn't you have been burbling?
couldn't they have been burbling?