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 can't punish you can't punish he can't punish we can't punish you can't punish they can't punish
V-ing form
I can't be punishing you can't be punishing he can't be punishing we can't be punishing you can't be punishing they can't be punishing
Perfect
I can't have punished you can't have punished he can't have punished we can't have punished you can't have punished they can't have punished
V-ing perfect
I can't have been punishing you can't have been punishing he can't have been punishing we can't have been punishing you can't have been punishing they can't 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't I punish? can't you punish? can't he punish? can't we punish? can't you punish? can't they punish?
V-ing form
can't I be punishing? can't you be punishing? can't he be punishing? can't we be punishing? can't you be punishing? can't they be punishing?
Perfect
can't I have punished? can't you have punished? can't he have punished? can't we have punished? can't you have punished? can't they have punished?
V-ing perfect
can't I have been punishing? can't you have been punishing? can't he have been punishing? can't we have been punishing? can't you have been punishing? can't they have been punishing?