I can listen you can listen he can listen we can listen you can listen they can listen
Forma com V-ing
I can be listening you can be listening he can be listening we can be listening you can be listening they can be listening
Perfeito
I can have listened you can have listened he can have listened we can have listened you can have listened they can have listened
Perfeito com V-ing
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
Negação
Forma simple
I can't listen you can't listen he can't listen we can't listen you can't listen they can't listen
Forma com V-ing
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
Perfeito
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
Perfeito com V-ing
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
can I listen? can you listen? can he listen? can we listen? can you listen? can they listen?
Forma com V-ing
can I be listening? can you be listening? can he be listening? can we be listening? can you be listening? can they be listening?
Perfeito
can I have listened? can you have listened? can he have listened? can we have listened? can you have listened? can they have listened?
Perfeito com V-ing
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-Negação
Forma simple
can't I listen? can't you listen? can't he listen? can't we listen? can't you listen? can't they listen?
Forma com V-ing
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?
Perfeito
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?
Perfeito com V-ing
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?