can listen
Verbo regular: listen - listened- listened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can listen
you can listen
he can listen
we can listen
you can listen
they can listen 	I can be listening
you can be listening
he can be listening
we can be listening
you can be listening
they can be listening	I can have listened
you can have listened
he can have listened
we can have listened
you can have listened
they can have listened	I can have been listening
you can have been listening
he can have been listening
we can have been listening
you can have been listening
they can have been listening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't listen
you can't listen
he can't listen
we can't listen
you can't listen
they can't listen 	I can't be listening
you can't be listening
he can't be listening
we can't be listening
you can't be listening
they can't be listening	I can't have listened
you can't have listened
he can't have listened
we can't have listened
you can't have listened
they can't have listened	I can't have been listening
you can't have been listening
he can't have been listening
we can't have been listening
you can't have been listening
they can't have been listening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I listen?
can you listen?
can he listen?
can we listen?
can you listen?
can they listen? 	can I be listening?
can you be listening?
can he be listening?
can we be listening?
can you be listening?
can they be listening? 	can I have listened?
can you have listened?
can he have listened?
can we have listened?
can you have listened?
can they have listened? 	can I have been listening?
can you have been listening?
can he have been listening?
can we have been listening?
can you have been listening?
can they have been listening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I listen?
can't you listen?
can't he listen?
can't we listen?
can't you listen?
can't they listen? 	can't I be listening?
can't you be listening?
can't he be listening?
can't we be listening?
can't you be listening?
can't they be listening? 	can't I have listened?
can't you have listened?
can't he have listened?
can't we have listened?
can't you have listened?
can't they have listened? 	can't I have been listening?
can't you have been listening?
can't he have been listening?
can't we have been listening?
can't you have been listening?
can't they have been listening?