must punish
Regular verb: punish - punished- punished

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't punish
you mustn't punish
he mustn't punish
we mustn't punish
you mustn't punish
they mustn't punish 	I mustn't be punishing
you mustn't be punishing
he mustn't be punishing
we mustn't be punishing
you mustn't be punishing
they mustn't be punishing	I mustn't have punished
you mustn't have punished
he mustn't have punished
we mustn't have punished
you mustn't have punished
they mustn't have punished	I mustn't have been punishing
you mustn't have been punishing
he mustn't have been punishing
we mustn't have been punishing
you mustn't have been punishing
they mustn't have been punishing	

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

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