could wail
Verbo regular: wail - wailed- wailed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could wail
you could wail
he could wail
we could wail
you could wail
they could wail 	I could be wailing
you could be wailing
he could be wailing
we could be wailing
you could be wailing
they could be wailing	I could have wailed
you could have wailed
he could have wailed
we could have wailed
you could have wailed
they could have wailed	I could have been wailing
you could have been wailing
he could have been wailing
we could have been wailing
you could have been wailing
they could have been wailing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not wail
you could not wail
he could not wail
we could not wail
you could not wail
they could not wail 	I could not be wailing
you could not be wailing
he could not be wailing
we could not be wailing
you could not be wailing
they could not be wailing	I could not have wailed
you could not have wailed
he could not have wailed
we could not have wailed
you could not have wailed
they could not have wailed	I could not have been wailing
you could not have been wailing
he could not have been wailing
we could not have been wailing
you could not have been wailing
they could not have been wailing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I wail?
could you wail?
could he wail?
could we wail?
could you wail?
could they wail? 	could I be wailing?
could you be wailing?
could he be wailing?
could we be wailing?
could you be wailing?
could they be wailing? 	could I have wailed?
could you have wailed?
could he have wailed?
could we have wailed?
could you have wailed?
could they have wailed? 	could I have been wailing?
could you have been wailing?
could he have been wailing?
could we have been wailing?
could you have been wailing?
could they have been wailing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not wail?
could you not wail?
could he not wail?
could we not wail?
could you not wail?
could they not wail? 	could I not be wailing?
could you not be wailing?
could he not be wailing?
could we not be wailing?
could you not be wailing?
could they not be wailing? 	could I not have wailed?
could you not have wailed?
could he not have wailed?
could we not have wailed?
could you not have wailed?
could they not have wailed? 	could I not have been wailing?
could you not have been wailing?
could he not have been wailing?
could we not have been wailing?
could you not have been wailing?
could they not have been wailing?