I can talk you can talk he can talk we can talk you can talk they can talk
Forma com V-ing
I can be talking you can be talking he can be talking we can be talking you can be talking they can be talking
Perfeito
I can have talked you can have talked he can have talked we can have talked you can have talked they can have talked
Perfeito com V-ing
I can have been talking you can have been talking he can have been talking we can have been talking you can have been talking they can have been talking
Negação
Forma simple
I cannot talk you cannot talk he cannot talk we cannot talk you cannot talk they cannot talk
Forma com V-ing
I cannot be talking you cannot be talking he cannot be talking we cannot be talking you cannot be talking they cannot be talking
Perfeito
I cannot have talked you cannot have talked he cannot have talked we cannot have talked you cannot have talked they cannot have talked
Perfeito com V-ing
I cannot have been talking you cannot have been talking he cannot have been talking we cannot have been talking you cannot have been talking they cannot have been talking
Forma interrogativa
Forma simple
can I talk? can you talk? can he talk? can we talk? can you talk? can they talk?
Forma com V-ing
can I be talking? can you be talking? can he be talking? can we be talking? can you be talking? can they be talking?
Perfeito
can I have talked? can you have talked? can he have talked? can we have talked? can you have talked? can they have talked?
Perfeito com V-ing
can I have been talking? can you have been talking? can he have been talking? can we have been talking? can you have been talking? can they have been talking?
Forma interro-Negação
Forma simple
can I not talk? can you not talk? can he not talk? can we not talk? can you not talk? can they not talk?
Forma com V-ing
can I not be talking? can you not be talking? can he not be talking? can we not be talking? can you not be talking? can they not be talking?
Perfeito
can I not have talked? can you not have talked? can he not have talked? can we not have talked? can you not have talked? can they not have talked?
Perfeito com V-ing
can I not have been talking? can you not have been talking? can he not have been talking? can we not have been talking? can you not have been talking? can they not have been talking?