can punish
Regular verb: punish - punished- punished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can punish
you can punish
she can punish
we can punish
you can punish
they can punish 	I can be punishing
you can be punishing
she can be punishing
we can be punishing
you can be punishing
they can be punishing	I can have punished
you can have punished
she can have punished
we can have punished
you can have punished
they can have punished	I can have been punishing
you can have been punishing
she can have been punishing
we can have been punishing
you can have been punishing
they can have been punishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot punish
you cannot punish
she cannot punish
we cannot punish
you cannot punish
they cannot punish 	I cannot be punishing
you cannot be punishing
she cannot be punishing
we cannot be punishing
you cannot be punishing
they cannot be punishing	I cannot have punished
you cannot have punished
she cannot have punished
we cannot have punished
you cannot have punished
they cannot have punished	I cannot have been punishing
you cannot have been punishing
she cannot have been punishing
we cannot have been punishing
you cannot have been punishing
they cannot have been punishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I punish?
can you punish?
can she punish?
can we punish?
can you punish?
can they punish? 	can I be punishing?
can you be punishing?
can she be punishing?
can we be punishing?
can you be punishing?
can they be punishing? 	can I have punished?
can you have punished?
can she have punished?
can we have punished?
can you have punished?
can they have punished? 	can I have been punishing?
can you have been punishing?
can she have been punishing?
can we have been punishing?
can you have been punishing?
can they have been punishing? 	

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