could unravel
Verbo regular: unravel - unravelled- unravelled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could unravel
you could unravel
he could unravel
we could unravel
you could unravel
they could unravel 	I could be unravelling
you could be unravelling
he could be unravelling
we could be unravelling
you could be unravelling
they could be unravelling	I could have unravelled
you could have unravelled
he could have unravelled
we could have unravelled
you could have unravelled
they could have unravelled	I could have been unravelling
you could have been unravelling
he could have been unravelling
we could have been unravelling
you could have been unravelling
they could have been unravelling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not unravel
you could not unravel
he could not unravel
we could not unravel
you could not unravel
they could not unravel 	I could not be unravelling
you could not be unravelling
he could not be unravelling
we could not be unravelling
you could not be unravelling
they could not be unravelling	I could not have unravelled
you could not have unravelled
he could not have unravelled
we could not have unravelled
you could not have unravelled
they could not have unravelled	I could not have been unravelling
you could not have been unravelling
he could not have been unravelling
we could not have been unravelling
you could not have been unravelling
they could not have been unravelling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I unravel?
could you unravel?
could he unravel?
could we unravel?
could you unravel?
could they unravel? 	could I be unravelling?
could you be unravelling?
could he be unravelling?
could we be unravelling?
could you be unravelling?
could they be unravelling? 	could I have unravelled?
could you have unravelled?
could he have unravelled?
could we have unravelled?
could you have unravelled?
could they have unravelled? 	could I have been unravelling?
could you have been unravelling?
could he have been unravelling?
could we have been unravelling?
could you have been unravelling?
could they have been unravelling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not unravel?
could you not unravel?
could he not unravel?
could we not unravel?
could you not unravel?
could they not unravel? 	could I not be unravelling?
could you not be unravelling?
could he not be unravelling?
could we not be unravelling?
could you not be unravelling?
could they not be unravelling? 	could I not have unravelled?
could you not have unravelled?
could he not have unravelled?
could we not have unravelled?
could you not have unravelled?
could they not have unravelled? 	could I not have been unravelling?
could you not have been unravelling?
could he not have been unravelling?
could we not have been unravelling?
could you not have been unravelling?
could they not have been unravelling?