English verb conjugation
MUST DECREE

Regular verb: decree - decreed - decreed

Affirmation

Simple form	V-ing form
I must decree you must decree she must decree we must decree you must decree they must decree	I must be decreeing you must be decreeing she must be decreeing we must be decreeing you must be decreeing they must be decreeing
Perfect	V-ing perfect
I must have decreed you must have decreed she must have decreed we must have decreed you must have decreed they must have decreed	I must have been decreeing you must have been decreeing she must have been decreeing we must have been decreeing you must have been decreeing they must have been decreeing

Negation

Simple form	V-ing form
I must not decree you must not decree she must not decree we must not decree you must not decree they must not decree	I must not be decreeing you must not be decreeing she must not be decreeing we must not be decreeing you must not be decreeing they must not be decreeing
Perfect	V-ing perfect
I must not have decreed you must not have decreed she must not have decreed we must not have decreed you must not have decreed they must not have decreed	I must not have been decreeing you must not have been decreeing she must not have been decreeing we must not have been decreeing you must not have been decreeing they must not have been decreeing

Interrogative form

Simple form	V-ing form
must I decree? must you decree? must she decree? must we decree? must you decree? must they decree?	must I be decreeing? must you be decreeing? must she be decreeing? must we be decreeing? must you be decreeing? must they be decreeing?
Perfect	V-ing perfect
must I have decreed? must you have decreed? must she have decreed? must we have decreed? must you have decreed? must they have decreed?	must I have been decreeing? must you have been decreeing? must she have been decreeing? must we have been decreeing? must you have been decreeing? must they have been decreeing?

Interro-negative form

Simple form	V-ing form
must I not decree? must you not decree? must she not decree? must we not decree? must you not decree? must they not decree?	must I not be decreeing? must you not be decreeing? must she not be decreeing? must we not be decreeing? must you not be decreeing? must they not be decreeing?
Perfect	V-ing perfect
must I not have decreed? must you not have decreed? must she not have decreed? must we not have decreed? must you not have decreed? must they not have decreed?	must I not have been decreeing? must you not have been decreeing? must she not have been decreeing? must we not have been decreeing? must you not have been decreeing? must they not have been decreeing?