could listen
Verbo regolare: listen - listened- listened

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could listen
you could listen
she could listen
we could listen
you could listen
they could listen 	I could be listening
you could be listening
she could be listening
we could be listening
you could be listening
they could be listening	I could have listened
you could have listened
she could have listened
we could have listened
you could have listened
they could have listened	I could have been listening
you could have been listening
she could have been listening
we could have been listening
you could have been listening
they could have been listening	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not listen
you could not listen
she could not listen
we could not listen
you could not listen
they could not listen 	I could not be listening
you could not be listening
she could not be listening
we could not be listening
you could not be listening
they could not be listening	I could not have listened
you could not have listened
she could not have listened
we could not have listened
you could not have listened
they could not have listened	I could not have been listening
you could not have been listening
she could not have been listening
we could not have been listening
you could not have been listening
they could not have been listening	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I listen?
could you listen?
could she listen?
could we listen?
could you listen?
could they listen? 	could I be listening?
could you be listening?
could she be listening?
could we be listening?
could you be listening?
could they be listening? 	could I have listened?
could you have listened?
could she have listened?
could we have listened?
could you have listened?
could they have listened? 	could I have been listening?
could you have been listening?
could she have been listening?
could we have been listening?
could you have been listening?
could they have been listening? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not listen?
could you not listen?
could she not listen?
could we not listen?
could you not listen?
could they not listen? 	could I not be listening?
could you not be listening?
could she not be listening?
could we not be listening?
could you not be listening?
could they not be listening? 	could I not have listened?
could you not have listened?
could she not have listened?
could we not have listened?
could you not have listened?
could they not have listened? 	could I not have been listening?
could you not have been listening?
could she not have been listening?
could we not have been listening?
could you not have been listening?
could they not have been listening?