English verb conjugation
MUST PUN

Regular verb: pun - punned - punned

Affirmation

Simple form	V-ing form
I must pun you must pun he must pun we must pun you must pun they must pun	I must be punning you must be punning he must be punning we must be punning you must be punning they must be punning
Perfect	V-ing perfect
I must have punned you must have punned he must have punned we must have punned you must have punned they must have punned	I must have been punning you must have been punning he must have been punning we must have been punning you must have been punning they must have been punning

Negation

Simple form	V-ing form
I must not pun you must not pun he must not pun we must not pun you must not pun they must not pun	I must not be punning you must not be punning he must not be punning we must not be punning you must not be punning they must not be punning
Perfect	V-ing perfect
I must not have punned you must not have punned he must not have punned we must not have punned you must not have punned they must not have punned	I must not have been punning you must not have been punning he must not have been punning we must not have been punning you must not have been punning they must not have been punning

Interrogative form

Simple form	V-ing form
must I pun? must you pun? must he pun? must we pun? must you pun? must they pun?	must I be punning? must you be punning? must he be punning? must we be punning? must you be punning? must they be punning?
Perfect	V-ing perfect
must I have punned? must you have punned? must he have punned? must we have punned? must you have punned? must they have punned?	must I have been punning? must you have been punning? must he have been punning? must we have been punning? must you have been punning? must they have been punning?

Interro-negative form

Simple form	V-ing form
must I not pun? must you not pun? must he not pun? must we not pun? must you not pun? must they not pun?	must I not be punning? must you not be punning? must he not be punning? must we not be punning? must you not be punning? must they not be punning?
Perfect	V-ing perfect
must I not have punned? must you not have punned? must he not have punned? must we not have punned? must you not have punned? must they not have punned?	must I not have been punning? must you not have been punning? must he not have been punning? must we not have been punning? must you not have been punning? must they not have been punning?