English verb conjugation
COULD ECONOMIZE

Regular verb: economize - economized - economized

Affirmation

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

Negation

Simple form	V-ing form
I couldn't economize you couldn't economize she couldn't economize we couldn't economize you couldn't economize they couldn't economize	I couldn't be economizing you couldn't be economizing she couldn't be economizing we couldn't be economizing you couldn't be economizing they couldn't be economizing
Perfect	V-ing perfect
I couldn't have economized you couldn't have economized she couldn't have economized we couldn't have economized you couldn't have economized they couldn't have economized	I couldn't have been economizing you couldn't have been economizing she couldn't have been economizing we couldn't have been economizing you couldn't have been economizing they couldn't have been economizing

Interrogative form

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

Interro-negative form

Simple form	V-ing form
couldn't I economize? couldn't you economize? couldn't she economize? couldn't we economize? couldn't you economize? couldn't they economize?	couldn't I be economizing? couldn't you be economizing? couldn't she be economizing? couldn't we be economizing? couldn't you be economizing? couldn't they be economizing?
Perfect	V-ing perfect
couldn't I have economized? couldn't you have economized? couldn't she have economized? couldn't we have economized? couldn't you have economized? couldn't they have economized?	couldn't I have been economizing? couldn't you have been economizing? couldn't she have been economizing? couldn't we have been economizing? couldn't you have been economizing? couldn't they have been economizing?