could haven
Verbo regolare: haven - havened- havened

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could haven
you could haven
he could haven
we could haven
you could haven
they could haven 	I could be havening
you could be havening
he could be havening
we could be havening
you could be havening
they could be havening	I could have havened
you could have havened
he could have havened
we could have havened
you could have havened
they could have havened	I could have been havening
you could have been havening
he could have been havening
we could have been havening
you could have been havening
they could have been havening	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not haven
you could not haven
he could not haven
we could not haven
you could not haven
they could not haven 	I could not be havening
you could not be havening
he could not be havening
we could not be havening
you could not be havening
they could not be havening	I could not have havened
you could not have havened
he could not have havened
we could not have havened
you could not have havened
they could not have havened	I could not have been havening
you could not have been havening
he could not have been havening
we could not have been havening
you could not have been havening
they could not have been havening	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I haven?
could you haven?
could he haven?
could we haven?
could you haven?
could they haven? 	could I be havening?
could you be havening?
could he be havening?
could we be havening?
could you be havening?
could they be havening? 	could I have havened?
could you have havened?
could he have havened?
could we have havened?
could you have havened?
could they have havened? 	could I have been havening?
could you have been havening?
could he have been havening?
could we have been havening?
could you have been havening?
could they have been havening? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not haven?
could you not haven?
could he not haven?
could we not haven?
could you not haven?
could they not haven? 	could I not be havening?
could you not be havening?
could he not be havening?
could we not be havening?
could you not be havening?
could they not be havening? 	could I not have havened?
could you not have havened?
could he not have havened?
could we not have havened?
could you not have havened?
could they not have havened? 	could I not have been havening?
could you not have been havening?
could he not have been havening?
could we not have been havening?
could you not have been havening?
could they not have been havening?