can raven
Verbo regular: raven - ravened- ravened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can raven
you can raven
he can raven
we can raven
you can raven
they can raven 	I can be ravening
you can be ravening
he can be ravening
we can be ravening
you can be ravening
they can be ravening	I can have ravened
you can have ravened
he can have ravened
we can have ravened
you can have ravened
they can have ravened	I can have been ravening
you can have been ravening
he can have been ravening
we can have been ravening
you can have been ravening
they can have been ravening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot raven
you cannot raven
he cannot raven
we cannot raven
you cannot raven
they cannot raven 	I cannot be ravening
you cannot be ravening
he cannot be ravening
we cannot be ravening
you cannot be ravening
they cannot be ravening	I cannot have ravened
you cannot have ravened
he cannot have ravened
we cannot have ravened
you cannot have ravened
they cannot have ravened	I cannot have been ravening
you cannot have been ravening
he cannot have been ravening
we cannot have been ravening
you cannot have been ravening
they cannot have been ravening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I raven?
can you raven?
can he raven?
can we raven?
can you raven?
can they raven? 	can I be ravening?
can you be ravening?
can he be ravening?
can we be ravening?
can you be ravening?
can they be ravening? 	can I have ravened?
can you have ravened?
can he have ravened?
can we have ravened?
can you have ravened?
can they have ravened? 	can I have been ravening?
can you have been ravening?
can he have been ravening?
can we have been ravening?
can you have been ravening?
can they have been ravening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not raven?
can you not raven?
can he not raven?
can we not raven?
can you not raven?
can they not raven? 	can I not be ravening?
can you not be ravening?
can he not be ravening?
can we not be ravening?
can you not be ravening?
can they not be ravening? 	can I not have ravened?
can you not have ravened?
can he not have ravened?
can we not have ravened?
can you not have ravened?
can they not have ravened? 	can I not have been ravening?
can you not have been ravening?
can he not have been ravening?
can we not have been ravening?
can you not have been ravening?
can they not have been ravening?