English verb conjugation
MUST EMPOISON

Regular verb: empoison - empoisoned - empoisoned

Affirmation

Simple form	V-ing form
I must empoison you must empoison he must empoison we must empoison you must empoison they must empoison	I must be empoisoning you must be empoisoning he must be empoisoning we must be empoisoning you must be empoisoning they must be empoisoning
Perfect	V-ing perfect
I must have empoisoned you must have empoisoned he must have empoisoned we must have empoisoned you must have empoisoned they must have empoisoned	I must have been empoisoning you must have been empoisoning he must have been empoisoning we must have been empoisoning you must have been empoisoning they must have been empoisoning

Negation

Simple form	V-ing form
I must not empoison you must not empoison he must not empoison we must not empoison you must not empoison they must not empoison	I must not be empoisoning you must not be empoisoning he must not be empoisoning we must not be empoisoning you must not be empoisoning they must not be empoisoning
Perfect	V-ing perfect
I must not have empoisoned you must not have empoisoned he must not have empoisoned we must not have empoisoned you must not have empoisoned they must not have empoisoned	I must not have been empoisoning you must not have been empoisoning he must not have been empoisoning we must not have been empoisoning you must not have been empoisoning they must not have been empoisoning

Interrogative form

Simple form	V-ing form
must I empoison? must you empoison? must he empoison? must we empoison? must you empoison? must they empoison?	must I be empoisoning? must you be empoisoning? must he be empoisoning? must we be empoisoning? must you be empoisoning? must they be empoisoning?
Perfect	V-ing perfect
must I have empoisoned? must you have empoisoned? must he have empoisoned? must we have empoisoned? must you have empoisoned? must they have empoisoned?	must I have been empoisoning? must you have been empoisoning? must he have been empoisoning? must we have been empoisoning? must you have been empoisoning? must they have been empoisoning?

Interro-negative form

Simple form	V-ing form
must I not empoison? must you not empoison? must he not empoison? must we not empoison? must you not empoison? must they not empoison?	must I not be empoisoning? must you not be empoisoning? must he not be empoisoning? must we not be empoisoning? must you not be empoisoning? must they not be empoisoning?
Perfect	V-ing perfect
must I not have empoisoned? must you not have empoisoned? must he not have empoisoned? must we not have empoisoned? must you not have empoisoned? must they not have empoisoned?	must I not have been empoisoning? must you not have been empoisoning? must he not have been empoisoning? must we not have been empoisoning? must you not have been empoisoning? must they not have been empoisoning?