could coo
Verbo regolare: coo - cooed- cooed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could coo
you could coo
he could coo
we could coo
you could coo
they could coo 	I could be cooing
you could be cooing
he could be cooing
we could be cooing
you could be cooing
they could be cooing	I could have cooed
you could have cooed
he could have cooed
we could have cooed
you could have cooed
they could have cooed	I could have been cooing
you could have been cooing
he could have been cooing
we could have been cooing
you could have been cooing
they could have been cooing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not coo
you could not coo
he could not coo
we could not coo
you could not coo
they could not coo 	I could not be cooing
you could not be cooing
he could not be cooing
we could not be cooing
you could not be cooing
they could not be cooing	I could not have cooed
you could not have cooed
he could not have cooed
we could not have cooed
you could not have cooed
they could not have cooed	I could not have been cooing
you could not have been cooing
he could not have been cooing
we could not have been cooing
you could not have been cooing
they could not have been cooing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I coo?
could you coo?
could he coo?
could we coo?
could you coo?
could they coo? 	could I be cooing?
could you be cooing?
could he be cooing?
could we be cooing?
could you be cooing?
could they be cooing? 	could I have cooed?
could you have cooed?
could he have cooed?
could we have cooed?
could you have cooed?
could they have cooed? 	could I have been cooing?
could you have been cooing?
could he have been cooing?
could we have been cooing?
could you have been cooing?
could they have been cooing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not coo?
could you not coo?
could he not coo?
could we not coo?
could you not coo?
could they not coo? 	could I not be cooing?
could you not be cooing?
could he not be cooing?
could we not be cooing?
could you not be cooing?
could they not be cooing? 	could I not have cooed?
could you not have cooed?
could he not have cooed?
could we not have cooed?
could you not have cooed?
could they not have cooed? 	could I not have been cooing?
could you not have been cooing?
could he not have been cooing?
could we not have been cooing?
could you not have been cooing?
could they not have been cooing?