English verb conjugation
MUST PUNCH

Regular verb: punch - punched - punched

Affirmation

Simple form	V-ing form
I must punch you must punch he must punch we must punch you must punch they must punch	I must be punching you must be punching he must be punching we must be punching you must be punching they must be punching
Perfect	V-ing perfect
I must have punched you must have punched he must have punched we must have punched you must have punched they must have punched	I must have been punching you must have been punching he must have been punching we must have been punching you must have been punching they must have been punching

Negation

Simple form	V-ing form
I mustn't punch you mustn't punch he mustn't punch we mustn't punch you mustn't punch they mustn't punch	I mustn't be punching you mustn't be punching he mustn't be punching we mustn't be punching you mustn't be punching they mustn't be punching
Perfect	V-ing perfect
I mustn't have punched you mustn't have punched he mustn't have punched we mustn't have punched you mustn't have punched they mustn't have punched	I mustn't have been punching you mustn't have been punching he mustn't have been punching we mustn't have been punching you mustn't have been punching they mustn't have been punching

Interrogative form

Simple form	V-ing form
must I punch? must you punch? must he punch? must we punch? must you punch? must they punch?	must I be punching? must you be punching? must he be punching? must we be punching? must you be punching? must they be punching?
Perfect	V-ing perfect
must I have punched? must you have punched? must he have punched? must we have punched? must you have punched? must they have punched?	must I have been punching? must you have been punching? must he have been punching? must we have been punching? must you have been punching? must they have been punching?

Interro-negative form

Simple form	V-ing form
mustn't I punch? mustn't you punch? mustn't he punch? mustn't we punch? mustn't you punch? mustn't they punch?	mustn't I be punching? mustn't you be punching? mustn't he be punching? mustn't we be punching? mustn't you be punching? mustn't they be punching?
Perfect	V-ing perfect
mustn't I have punched? mustn't you have punched? mustn't he have punched? mustn't we have punched? mustn't you have punched? mustn't they have punched?	mustn't I have been punching? mustn't you have been punching? mustn't he have been punching? mustn't we have been punching? mustn't you have been punching? mustn't they have been punching?