could vail
Verbo regolare: vail - vailed- vailed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could vail
you could vail
she could vail
we could vail
you could vail
they could vail 	I could be vailing
you could be vailing
she could be vailing
we could be vailing
you could be vailing
they could be vailing	I could have vailed
you could have vailed
she could have vailed
we could have vailed
you could have vailed
they could have vailed	I could have been vailing
you could have been vailing
she could have been vailing
we could have been vailing
you could have been vailing
they could have been vailing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not vail
you could not vail
she could not vail
we could not vail
you could not vail
they could not vail 	I could not be vailing
you could not be vailing
she could not be vailing
we could not be vailing
you could not be vailing
they could not be vailing	I could not have vailed
you could not have vailed
she could not have vailed
we could not have vailed
you could not have vailed
they could not have vailed	I could not have been vailing
you could not have been vailing
she could not have been vailing
we could not have been vailing
you could not have been vailing
they could not have been vailing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I vail?
could you vail?
could she vail?
could we vail?
could you vail?
could they vail? 	could I be vailing?
could you be vailing?
could she be vailing?
could we be vailing?
could you be vailing?
could they be vailing? 	could I have vailed?
could you have vailed?
could she have vailed?
could we have vailed?
could you have vailed?
could they have vailed? 	could I have been vailing?
could you have been vailing?
could she have been vailing?
could we have been vailing?
could you have been vailing?
could they have been vailing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not vail?
could you not vail?
could she not vail?
could we not vail?
could you not vail?
could they not vail? 	could I not be vailing?
could you not be vailing?
could she not be vailing?
could we not be vailing?
could you not be vailing?
could they not be vailing? 	could I not have vailed?
could you not have vailed?
could she not have vailed?
could we not have vailed?
could you not have vailed?
could they not have vailed? 	could I not have been vailing?
could you not have been vailing?
could she not have been vailing?
could we not have been vailing?
could you not have been vailing?
could they not have been vailing?