English verb conjugation
COULD COLOURIZE

Regular verb: colourize - colourized - colourized

Affirmation

Simple form	V-ing form
I could colourize you could colourize he could colourize we could colourize you could colourize they could colourize	I could be colourizing you could be colourizing he could be colourizing we could be colourizing you could be colourizing they could be colourizing
Perfect	V-ing perfect
I could have colourized you could have colourized he could have colourized we could have colourized you could have colourized they could have colourized	I could have been colourizing you could have been colourizing he could have been colourizing we could have been colourizing you could have been colourizing they could have been colourizing

Negation

Simple form	V-ing form
I could not colourize you could not colourize he could not colourize we could not colourize you could not colourize they could not colourize	I could not be colourizing you could not be colourizing he could not be colourizing we could not be colourizing you could not be colourizing they could not be colourizing
Perfect	V-ing perfect
I could not have colourized you could not have colourized he could not have colourized we could not have colourized you could not have colourized they could not have colourized	I could not have been colourizing you could not have been colourizing he could not have been colourizing we could not have been colourizing you could not have been colourizing they could not have been colourizing

Interrogative form

Simple form	V-ing form
could I colourize? could you colourize? could he colourize? could we colourize? could you colourize? could they colourize?	could I be colourizing? could you be colourizing? could he be colourizing? could we be colourizing? could you be colourizing? could they be colourizing?
Perfect	V-ing perfect
could I have colourized? could you have colourized? could he have colourized? could we have colourized? could you have colourized? could they have colourized?	could I have been colourizing? could you have been colourizing? could he have been colourizing? could we have been colourizing? could you have been colourizing? could they have been colourizing?

Interro-negative form

Simple form	V-ing form
could I not colourize? could you not colourize? could he not colourize? could we not colourize? could you not colourize? could they not colourize?	could I not be colourizing? could you not be colourizing? could he not be colourizing? could we not be colourizing? could you not be colourizing? could they not be colourizing?
Perfect	V-ing perfect
could I not have colourized? could you not have colourized? could he not have colourized? could we not have colourized? could you not have colourized? could they not have colourized?	could I not have been colourizing? could you not have been colourizing? could he not have been colourizing? could we not have been colourizing? could you not have been colourizing? could they not have been colourizing?