I could neigh you could neigh he could neigh we could neigh you could neigh they could neigh
Forma con V-ing
I could be neighing you could be neighing he could be neighing we could be neighing you could be neighing they could be neighing
Perfecto
I could have neighed you could have neighed he could have neighed we could have neighed you could have neighed they could have neighed
Perfecto con V-ing
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
I could not neigh you could not neigh he could not neigh we could not neigh you could not neigh they could not neigh
Forma con V-ing
I could not be neighing you could not be neighing he could not be neighing we could not be neighing you could not be neighing they could not be neighing
Perfecto
I could not have neighed you could not have neighed he could not have neighed we could not have neighed you could not have neighed they could not have neighed
Perfecto con V-ing
I could not have been neighing you could not have been neighing he could not have been neighing we could not have been neighing you could not have been neighing they could not have been neighing
Forma interrogativa
Forma simple
could I neigh? could you neigh? could he neigh? could we neigh? could you neigh? could they neigh?
Forma con V-ing
could I be neighing? could you be neighing? could he be neighing? could we be neighing? could you be neighing? could they be neighing?
Perfecto
could I have neighed? could you have neighed? could he have neighed? could we have neighed? could you have neighed? could they have neighed?
Perfecto con V-ing
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
could I not neigh? could you not neigh? could he not neigh? could we not neigh? could you not neigh? could they not neigh?
Forma con V-ing
could I not be neighing? could you not be neighing? could he not be neighing? could we not be neighing? could you not be neighing? could they not be neighing?
Perfecto
could I not have neighed? could you not have neighed? could he not have neighed? could we not have neighed? could you not have neighed? could they not have neighed?
Perfecto con V-ing
could I not have been neighing? could you not have been neighing? could he not have been neighing? could we not have been neighing? could you not have been neighing? could they not have been neighing?