English verb conjugation
COULD COLORIZE

Regular verb: colorize - colorized - colorized

Affirmation

Simple form	V-ing form
I could colorize you could colorize she could colorize we could colorize you could colorize they could colorize	I could be colorizing you could be colorizing she could be colorizing we could be colorizing you could be colorizing they could be colorizing
Perfect	V-ing perfect
I could have colorized you could have colorized she could have colorized we could have colorized you could have colorized they could have colorized	I could have been colorizing you could have been colorizing she could have been colorizing we could have been colorizing you could have been colorizing they could have been colorizing

Negation

Simple form	V-ing form
I couldn't colorize you couldn't colorize she couldn't colorize we couldn't colorize you couldn't colorize they couldn't colorize	I couldn't be colorizing you couldn't be colorizing she couldn't be colorizing we couldn't be colorizing you couldn't be colorizing they couldn't be colorizing
Perfect	V-ing perfect
I couldn't have colorized you couldn't have colorized she couldn't have colorized we couldn't have colorized you couldn't have colorized they couldn't have colorized	I couldn't have been colorizing you couldn't have been colorizing she couldn't have been colorizing we couldn't have been colorizing you couldn't have been colorizing they couldn't have been colorizing

Interrogative form

Simple form	V-ing form
could I colorize? could you colorize? could she colorize? could we colorize? could you colorize? could they colorize?	could I be colorizing? could you be colorizing? could she be colorizing? could we be colorizing? could you be colorizing? could they be colorizing?
Perfect	V-ing perfect
could I have colorized? could you have colorized? could she have colorized? could we have colorized? could you have colorized? could they have colorized?	could I have been colorizing? could you have been colorizing? could she have been colorizing? could we have been colorizing? could you have been colorizing? could they have been colorizing?

Interro-negative form

Simple form	V-ing form
couldn't I colorize? couldn't you colorize? couldn't she colorize? couldn't we colorize? couldn't you colorize? couldn't they colorize?	couldn't I be colorizing? couldn't you be colorizing? couldn't she be colorizing? couldn't we be colorizing? couldn't you be colorizing? couldn't they be colorizing?
Perfect	V-ing perfect
couldn't I have colorized? couldn't you have colorized? couldn't she have colorized? couldn't we have colorized? couldn't you have colorized? couldn't they have colorized?	couldn't I have been colorizing? couldn't you have been colorizing? couldn't she have been colorizing? couldn't we have been colorizing? couldn't you have been colorizing? couldn't they have been colorizing?