could neigh
Verbo regular: neigh - neighed- neighed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could neigh
you could neigh
he could neigh
we could neigh
you could neigh
they could neigh 	I could be neighing
you could be neighing
he could be neighing
we could be neighing
you could be neighing
they could be neighing	I could have neighed
you could have neighed
he could have neighed
we could have neighed
you could have neighed
they could have neighed	I could have been neighing
you could have been neighing
he could have been neighing
we could have been neighing
you could have been neighing
they could have been neighing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't neigh
you couldn't neigh
he couldn't neigh
we couldn't neigh
you couldn't neigh
they couldn't neigh 	I couldn't be neighing
you couldn't be neighing
he couldn't be neighing
we couldn't be neighing
you couldn't be neighing
they couldn't be neighing	I couldn't have neighed
you couldn't have neighed
he couldn't have neighed
we couldn't have neighed
you couldn't have neighed
they couldn't have neighed	I couldn't have been neighing
you couldn't have been neighing
he couldn't have been neighing
we couldn't have been neighing
you couldn't have been neighing
they couldn't have been neighing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I neigh?
could you neigh?
could he neigh?
could we neigh?
could you neigh?
could they neigh? 	could I be neighing?
could you be neighing?
could he be neighing?
could we be neighing?
could you be neighing?
could they be neighing? 	could I have neighed?
could you have neighed?
could he have neighed?
could we have neighed?
could you have neighed?
could they have neighed? 	could I have been neighing?
could you have been neighing?
could he have been neighing?
could we have been neighing?
could you have been neighing?
could they have been neighing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I neigh?
couldn't you neigh?
couldn't he neigh?
couldn't we neigh?
couldn't you neigh?
couldn't they neigh? 	couldn't I be neighing?
couldn't you be neighing?
couldn't he be neighing?
couldn't we be neighing?
couldn't you be neighing?
couldn't they be neighing? 	couldn't I have neighed?
couldn't you have neighed?
couldn't he have neighed?
couldn't we have neighed?
couldn't you have neighed?
couldn't they have neighed? 	couldn't I have been neighing?
couldn't you have been neighing?
couldn't he have been neighing?
couldn't we have been neighing?
couldn't you have been neighing?
couldn't they have been neighing?