can vail
Verbo regular: vail - vailed- vailed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can vail
you can vail
he can vail
we can vail
you can vail
they can vail 	I can be vailing
you can be vailing
he can be vailing
we can be vailing
you can be vailing
they can be vailing	I can have vailed
you can have vailed
he can have vailed
we can have vailed
you can have vailed
they can have vailed	I can have been vailing
you can have been vailing
he can have been vailing
we can have been vailing
you can have been vailing
they can have been vailing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot vail
you cannot vail
he cannot vail
we cannot vail
you cannot vail
they cannot vail 	I cannot be vailing
you cannot be vailing
he cannot be vailing
we cannot be vailing
you cannot be vailing
they cannot be vailing	I cannot have vailed
you cannot have vailed
he cannot have vailed
we cannot have vailed
you cannot have vailed
they cannot have vailed	I cannot have been vailing
you cannot have been vailing
he cannot have been vailing
we cannot have been vailing
you cannot have been vailing
they cannot have been vailing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I vail?
can you vail?
can he vail?
can we vail?
can you vail?
can they vail? 	can I be vailing?
can you be vailing?
can he be vailing?
can we be vailing?
can you be vailing?
can they be vailing? 	can I have vailed?
can you have vailed?
can he have vailed?
can we have vailed?
can you have vailed?
can they have vailed? 	can I have been vailing?
can you have been vailing?
can he have been vailing?
can we have been vailing?
can you have been vailing?
can they have been vailing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not vail?
can you not vail?
can he not vail?
can we not vail?
can you not vail?
can they not vail? 	can I not be vailing?
can you not be vailing?
can he not be vailing?
can we not be vailing?
can you not be vailing?
can they not be vailing? 	can I not have vailed?
can you not have vailed?
can he not have vailed?
can we not have vailed?
can you not have vailed?
can they not have vailed? 	can I not have been vailing?
can you not have been vailing?
can he not have been vailing?
can we not have been vailing?
can you not have been vailing?
can they not have been vailing?