English verb conjugation
MUST PUNISH

Regular verb: punish - punished - punished

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?