can ravel
Regular verb: ravel - ravelled- ravelled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't ravel
you can't ravel
he can't ravel
we can't ravel
you can't ravel
they can't ravel 	I can't be ravelling
you can't be ravelling
he can't be ravelling
we can't be ravelling
you can't be ravelling
they can't be ravelling	I can't have ravelled
you can't have ravelled
he can't have ravelled
we can't have ravelled
you can't have ravelled
they can't have ravelled	I can't have been ravelling
you can't have been ravelling
he can't have been ravelling
we can't have been ravelling
you can't have been ravelling
they can't have been ravelling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I ravel?
can't you ravel?
can't he ravel?
can't we ravel?
can't you ravel?
can't they ravel? 	can't I be ravelling?
can't you be ravelling?
can't he be ravelling?
can't we be ravelling?
can't you be ravelling?
can't they be ravelling? 	can't I have ravelled?
can't you have ravelled?
can't he have ravelled?
can't we have ravelled?
can't you have ravelled?
can't they have ravelled? 	can't I have been ravelling?
can't you have been ravelling?
can't he have been ravelling?
can't we have been ravelling?
can't you have been ravelling?
can't they have been ravelling?