English verb conjugation
MUST ECONOMIZE

Regular verb: economize - economized - economized

Affirmation

Simple form	V-ing form
I must economize you must economize he must economize we must economize you must economize they must economize	I must be economizing you must be economizing he must be economizing we must be economizing you must be economizing they must be economizing
Perfect	V-ing perfect
I must have economized you must have economized he must have economized we must have economized you must have economized they must have economized	I must have been economizing you must have been economizing he must have been economizing we must have been economizing you must have been economizing they must have been economizing

Negation

Simple form	V-ing form
I must not economize you must not economize he must not economize we must not economize you must not economize they must not economize	I must not be economizing you must not be economizing he must not be economizing we must not be economizing you must not be economizing they must not be economizing
Perfect	V-ing perfect
I must not have economized you must not have economized he must not have economized we must not have economized you must not have economized they must not have economized	I must not have been economizing you must not have been economizing he must not have been economizing we must not have been economizing you must not have been economizing they must not have been economizing

Interrogative form

Simple form	V-ing form
must I economize? must you economize? must he economize? must we economize? must you economize? must they economize?	must I be economizing? must you be economizing? must he be economizing? must we be economizing? must you be economizing? must they be economizing?
Perfect	V-ing perfect
must I have economized? must you have economized? must he have economized? must we have economized? must you have economized? must they have economized?	must I have been economizing? must you have been economizing? must he have been economizing? must we have been economizing? must you have been economizing? must they have been economizing?

Interro-negative form

Simple form	V-ing form
must I not economize? must you not economize? must he not economize? must we not economize? must you not economize? must they not economize?	must I not be economizing? must you not be economizing? must he not be economizing? must we not be economizing? must you not be economizing? must they not be economizing?
Perfect	V-ing perfect
must I not have economized? must you not have economized? must he not have economized? must we not have economized? must you not have economized? must they not have economized?	must I not have been economizing? must you not have been economizing? must he not have been economizing? must we not have been economizing? must you not have been economizing? must they not have been economizing?