I can punish you can punish he can punish we can punish you can punish they can punish
V-ing form
I can be punishing you can be punishing he can be punishing we can be punishing you can be punishing they can be punishing
Perfect
I can have punished you can have punished he can have punished we can have punished you can have punished they can have punished
V-ing perfect
I can have been punishing you can have been punishing he can have been punishing we can have been punishing you can have been punishing they can have been punishing
Negation
Simple form
I cannot punish you cannot punish he cannot punish we cannot punish you cannot punish they cannot punish
V-ing form
I cannot be punishing you cannot be punishing he cannot be punishing we cannot be punishing you cannot be punishing they cannot be punishing
Perfect
I cannot have punished you cannot have punished he cannot have punished we cannot have punished you cannot have punished they cannot have punished
V-ing perfect
I cannot have been punishing you cannot have been punishing he cannot have been punishing we cannot have been punishing you cannot have been punishing they cannot have been punishing
Interrogative form
Simple form
can I punish? can you punish? can he punish? can we punish? can you punish? can they punish?
V-ing form
can I be punishing? can you be punishing? can he be punishing? can we be punishing? can you be punishing? can they be punishing?
Perfect
can I have punished? can you have punished? can he have punished? can we have punished? can you have punished? can they have punished?
V-ing perfect
can I have been punishing? can you have been punishing? can he have been punishing? can we have been punishing? can you have been punishing? can they have been punishing?
Interro-negative form
Simple form
can I not punish? can you not punish? can he not punish? can we not punish? can you not punish? can they not punish?
V-ing form
can I not be punishing? can you not be punishing? can he not be punishing? can we not be punishing? can you not be punishing? can they not be punishing?
Perfect
can I not have punished? can you not have punished? can he not have punished? can we not have punished? can you not have punished? can they not have punished?
V-ing perfect
can I not have been punishing? can you not have been punishing? can he not have been punishing? can we not have been punishing? can you not have been punishing? can they not have been punishing?