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 must not subpoena you must not subpoena he must not subpoena we must not subpoena you must not subpoena they must not subpoena	I must not be subpoenaing you must not be subpoenaing he must not be subpoenaing we must not be subpoenaing you must not be subpoenaing they must not be subpoenaing
Perfect	V-ing perfect
I must not have subpoenaed you must not have subpoenaed he must not have subpoenaed we must not have subpoenaed you must not have subpoenaed they must not have subpoenaed	I must not have been subpoenaing you must not have been subpoenaing he must not have been subpoenaing we must not have been subpoenaing you must not have been subpoenaing they must not 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
must I not subpoena? must you not subpoena? must he not subpoena? must we not subpoena? must you not subpoena? must they not subpoena?	must I not be subpoenaing? must you not be subpoenaing? must he not be subpoenaing? must we not be subpoenaing? must you not be subpoenaing? must they not be subpoenaing?
Perfect	V-ing perfect
must I not have subpoenaed? must you not have subpoenaed? must he not have subpoenaed? must we not have subpoenaed? must you not have subpoenaed? must they not have subpoenaed?	must I not have been subpoenaing? must you not have been subpoenaing? must he not have been subpoenaing? must we not have been subpoenaing? must you not have been subpoenaing? must they not have been subpoenaing?