could corbel
Verbo regular: corbel - corbeled- corbeled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could corbel
you could corbel
he could corbel
we could corbel
you could corbel
they could corbel 	I could be corbeling
you could be corbeling
he could be corbeling
we could be corbeling
you could be corbeling
they could be corbeling	I could have corbeled
you could have corbeled
he could have corbeled
we could have corbeled
you could have corbeled
they could have corbeled	I could have been corbeling
you could have been corbeling
he could have been corbeling
we could have been corbeling
you could have been corbeling
they could have been corbeling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not corbel
you could not corbel
he could not corbel
we could not corbel
you could not corbel
they could not corbel 	I could not be corbeling
you could not be corbeling
he could not be corbeling
we could not be corbeling
you could not be corbeling
they could not be corbeling	I could not have corbeled
you could not have corbeled
he could not have corbeled
we could not have corbeled
you could not have corbeled
they could not have corbeled	I could not have been corbeling
you could not have been corbeling
he could not have been corbeling
we could not have been corbeling
you could not have been corbeling
they could not have been corbeling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I corbel?
could you corbel?
could he corbel?
could we corbel?
could you corbel?
could they corbel? 	could I be corbeling?
could you be corbeling?
could he be corbeling?
could we be corbeling?
could you be corbeling?
could they be corbeling? 	could I have corbeled?
could you have corbeled?
could he have corbeled?
could we have corbeled?
could you have corbeled?
could they have corbeled? 	could I have been corbeling?
could you have been corbeling?
could he have been corbeling?
could we have been corbeling?
could you have been corbeling?
could they have been corbeling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not corbel?
could you not corbel?
could he not corbel?
could we not corbel?
could you not corbel?
could they not corbel? 	could I not be corbeling?
could you not be corbeling?
could he not be corbeling?
could we not be corbeling?
could you not be corbeling?
could they not be corbeling? 	could I not have corbeled?
could you not have corbeled?
could he not have corbeled?
could we not have corbeled?
could you not have corbeled?
could they not have corbeled? 	could I not have been corbeling?
could you not have been corbeling?
could he not have been corbeling?
could we not have been corbeling?
could you not have been corbeling?
could they not have been corbeling?