English verb conjugation
MUST SUBPOENA

Regular verb: subpoena - subpoenaed - subpoenaed

Affirmation

Simple form	V-ing form
I must subpoena you must subpoena he must subpoena we must subpoena you must subpoena they must subpoena	I must be subpoenaing you must be subpoenaing he must be subpoenaing we must be subpoenaing you must be subpoenaing they must be subpoenaing
Perfect	V-ing perfect
I must have subpoenaed you must have subpoenaed he must have subpoenaed we must have subpoenaed you must have subpoenaed they must have subpoenaed	I must have been subpoenaing you must have been subpoenaing he must have been subpoenaing we must have been subpoenaing you must have been subpoenaing they must have been subpoenaing

Negation

Simple form	V-ing form
I mustn't subpoena you mustn't subpoena he mustn't subpoena we mustn't subpoena you mustn't subpoena they mustn't subpoena	I mustn't be subpoenaing you mustn't be subpoenaing he mustn't be subpoenaing we mustn't be subpoenaing you mustn't be subpoenaing they mustn't be subpoenaing
Perfect	V-ing perfect
I mustn't have subpoenaed you mustn't have subpoenaed he mustn't have subpoenaed we mustn't have subpoenaed you mustn't have subpoenaed they mustn't have subpoenaed	I mustn't have been subpoenaing you mustn't have been subpoenaing he mustn't have been subpoenaing we mustn't have been subpoenaing you mustn't have been subpoenaing they mustn't have been subpoenaing

Interrogative form

Simple form	V-ing form
must I subpoena? must you subpoena? must he subpoena? must we subpoena? must you subpoena? must they subpoena?	must I be subpoenaing? must you be subpoenaing? must he be subpoenaing? must we be subpoenaing? must you be subpoenaing? must they be subpoenaing?
Perfect	V-ing perfect
must I have subpoenaed? must you have subpoenaed? must he have subpoenaed? must we have subpoenaed? must you have subpoenaed? must they have subpoenaed?	must I have been subpoenaing? must you have been subpoenaing? must he have been subpoenaing? must we have been subpoenaing? must you have been subpoenaing? must they have been subpoenaing?

Interro-negative form

Simple form	V-ing form
mustn't I subpoena? mustn't you subpoena? mustn't he subpoena? mustn't we subpoena? mustn't you subpoena? mustn't they subpoena?	mustn't I be subpoenaing? mustn't you be subpoenaing? mustn't he be subpoenaing? mustn't we be subpoenaing? mustn't you be subpoenaing? mustn't they be subpoenaing?
Perfect	V-ing perfect
mustn't I have subpoenaed? mustn't you have subpoenaed? mustn't he have subpoenaed? mustn't we have subpoenaed? mustn't you have subpoenaed? mustn't they have subpoenaed?	mustn't I have been subpoenaing? mustn't you have been subpoenaing? mustn't he have been subpoenaing? mustn't we have been subpoenaing? mustn't you have been subpoenaing? mustn't they have been subpoenaing?