can ravel
Verbo regular: ravel - ravelled- ravelled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can ravel
you can ravel
he can ravel
we can ravel
you can ravel
they can ravel 	I can be ravelling
you can be ravelling
he can be ravelling
we can be ravelling
you can be ravelling
they can be ravelling	I can have ravelled
you can have ravelled
he can have ravelled
we can have ravelled
you can have ravelled
they can have ravelled	I can have been ravelling
you can have been ravelling
he can have been ravelling
we can have been ravelling
you can have been ravelling
they can have been ravelling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot ravel
you cannot ravel
he cannot ravel
we cannot ravel
you cannot ravel
they cannot ravel 	I cannot be ravelling
you cannot be ravelling
he cannot be ravelling
we cannot be ravelling
you cannot be ravelling
they cannot be ravelling	I cannot have ravelled
you cannot have ravelled
he cannot have ravelled
we cannot have ravelled
you cannot have ravelled
they cannot have ravelled	I cannot have been ravelling
you cannot have been ravelling
he cannot have been ravelling
we cannot have been ravelling
you cannot have been ravelling
they cannot have been ravelling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I ravel?
can you ravel?
can he ravel?
can we ravel?
can you ravel?
can they ravel? 	can I be ravelling?
can you be ravelling?
can he be ravelling?
can we be ravelling?
can you be ravelling?
can they be ravelling? 	can I have ravelled?
can you have ravelled?
can he have ravelled?
can we have ravelled?
can you have ravelled?
can they have ravelled? 	can I have been ravelling?
can you have been ravelling?
can he have been ravelling?
can we have been ravelling?
can you have been ravelling?
can they have been ravelling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not ravel?
can you not ravel?
can he not ravel?
can we not ravel?
can you not ravel?
can they not ravel? 	can I not be ravelling?
can you not be ravelling?
can he not be ravelling?
can we not be ravelling?
can you not be ravelling?
can they not be ravelling? 	can I not have ravelled?
can you not have ravelled?
can he not have ravelled?
can we not have ravelled?
can you not have ravelled?
can they not have ravelled? 	can I not have been ravelling?
can you not have been ravelling?
can he not have been ravelling?
can we not have been ravelling?
can you not have been ravelling?
can they not have been ravelling?