could parboil
Verbo regular: parboil - parboiled- parboiled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could parboil
you could parboil
he could parboil
we could parboil
you could parboil
they could parboil 	I could be parboiling
you could be parboiling
he could be parboiling
we could be parboiling
you could be parboiling
they could be parboiling	I could have parboiled
you could have parboiled
he could have parboiled
we could have parboiled
you could have parboiled
they could have parboiled	I could have been parboiling
you could have been parboiling
he could have been parboiling
we could have been parboiling
you could have been parboiling
they could have been parboiling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not parboil
you could not parboil
he could not parboil
we could not parboil
you could not parboil
they could not parboil 	I could not be parboiling
you could not be parboiling
he could not be parboiling
we could not be parboiling
you could not be parboiling
they could not be parboiling	I could not have parboiled
you could not have parboiled
he could not have parboiled
we could not have parboiled
you could not have parboiled
they could not have parboiled	I could not have been parboiling
you could not have been parboiling
he could not have been parboiling
we could not have been parboiling
you could not have been parboiling
they could not have been parboiling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I parboil?
could you parboil?
could he parboil?
could we parboil?
could you parboil?
could they parboil? 	could I be parboiling?
could you be parboiling?
could he be parboiling?
could we be parboiling?
could you be parboiling?
could they be parboiling? 	could I have parboiled?
could you have parboiled?
could he have parboiled?
could we have parboiled?
could you have parboiled?
could they have parboiled? 	could I have been parboiling?
could you have been parboiling?
could he have been parboiling?
could we have been parboiling?
could you have been parboiling?
could they have been parboiling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not parboil?
could you not parboil?
could he not parboil?
could we not parboil?
could you not parboil?
could they not parboil? 	could I not be parboiling?
could you not be parboiling?
could he not be parboiling?
could we not be parboiling?
could you not be parboiling?
could they not be parboiling? 	could I not have parboiled?
could you not have parboiled?
could he not have parboiled?
could we not have parboiled?
could you not have parboiled?
could they not have parboiled? 	could I not have been parboiling?
could you not have been parboiling?
could he not have been parboiling?
could we not have been parboiling?
could you not have been parboiling?
could they not have been parboiling?