could ball
Verbo regolare: ball - balled- balled

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could ball
you could ball
he could ball
we could ball
you could ball
they could ball 	I could be balling
you could be balling
he could be balling
we could be balling
you could be balling
they could be balling	I could have balled
you could have balled
he could have balled
we could have balled
you could have balled
they could have balled	I could have been balling
you could have been balling
he could have been balling
we could have been balling
you could have been balling
they could have been balling	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't ball
you couldn't ball
he couldn't ball
we couldn't ball
you couldn't ball
they couldn't ball 	I couldn't be balling
you couldn't be balling
he couldn't be balling
we couldn't be balling
you couldn't be balling
they couldn't be balling	I couldn't have balled
you couldn't have balled
he couldn't have balled
we couldn't have balled
you couldn't have balled
they couldn't have balled	I couldn't have been balling
you couldn't have been balling
he couldn't have been balling
we couldn't have been balling
you couldn't have been balling
they couldn't have been balling	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I ball?
could you ball?
could he ball?
could we ball?
could you ball?
could they ball? 	could I be balling?
could you be balling?
could he be balling?
could we be balling?
could you be balling?
could they be balling? 	could I have balled?
could you have balled?
could he have balled?
could we have balled?
could you have balled?
could they have balled? 	could I have been balling?
could you have been balling?
could he have been balling?
could we have been balling?
could you have been balling?
could they have been balling? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I ball?
couldn't you ball?
couldn't he ball?
couldn't we ball?
couldn't you ball?
couldn't they ball? 	couldn't I be balling?
couldn't you be balling?
couldn't he be balling?
couldn't we be balling?
couldn't you be balling?
couldn't they be balling? 	couldn't I have balled?
couldn't you have balled?
couldn't he have balled?
couldn't we have balled?
couldn't you have balled?
couldn't they have balled? 	couldn't I have been balling?
couldn't you have been balling?
couldn't he have been balling?
couldn't we have been balling?
couldn't you have been balling?
couldn't they have been balling?