I can listen you can listen he can listen we can listen you can listen they can listen
V-ing form
I can be listening you can be listening he can be listening we can be listening you can be listening they can be listening
Perfect
I can have listened you can have listened he can have listened we can have listened you can have listened they can have listened
V-ing perfect
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
Negation
Simple form
I cannot listen you cannot listen he cannot listen we cannot listen you cannot listen they cannot listen
V-ing form
I cannot be listening you cannot be listening he cannot be listening we cannot be listening you cannot be listening they cannot be listening
Perfect
I cannot have listened you cannot have listened he cannot have listened we cannot have listened you cannot have listened they cannot have listened
V-ing perfect
I cannot have been listening you cannot have been listening he cannot have been listening we cannot have been listening you cannot have been listening they cannot have been listening
Interrogative form
Simple form
can I listen? can you listen? can he listen? can we listen? can you listen? can they listen?
V-ing form
can I be listening? can you be listening? can he be listening? can we be listening? can you be listening? can they be listening?
Perfect
can I have listened? can you have listened? can he have listened? can we have listened? can you have listened? can they have listened?
V-ing perfect
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?
Interro-negative form
Simple form
can I not listen? can you not listen? can he not listen? can we not listen? can you not listen? can they not listen?
V-ing form
can I not be listening? can you not be listening? can he not be listening? can we not be listening? can you not be listening? can they not be listening?
Perfect
can I not have listened? can you not have listened? can he not have listened? can we not have listened? can you not have listened? can they not have listened?
V-ing perfect
can I not have been listening? can you not have been listening? can he not have been listening? can we not have been listening? can you not have been listening? can they not have been listening?