English verb conjugation
COULD SUBURBANIZE

Regular verb: suburbanize - suburbanized - suburbanized

Affirmation

Simple form	V-ing form
I could suburbanize you could suburbanize he could suburbanize we could suburbanize you could suburbanize they could suburbanize	I could be suburbanizing you could be suburbanizing he could be suburbanizing we could be suburbanizing you could be suburbanizing they could be suburbanizing
Perfect	V-ing perfect
I could have suburbanized you could have suburbanized he could have suburbanized we could have suburbanized you could have suburbanized they could have suburbanized	I could have been suburbanizing you could have been suburbanizing he could have been suburbanizing we could have been suburbanizing you could have been suburbanizing they could have been suburbanizing

Negation

Simple form	V-ing form
I could not suburbanize you could not suburbanize he could not suburbanize we could not suburbanize you could not suburbanize they could not suburbanize	I could not be suburbanizing you could not be suburbanizing he could not be suburbanizing we could not be suburbanizing you could not be suburbanizing they could not be suburbanizing
Perfect	V-ing perfect
I could not have suburbanized you could not have suburbanized he could not have suburbanized we could not have suburbanized you could not have suburbanized they could not have suburbanized	I could not have been suburbanizing you could not have been suburbanizing he could not have been suburbanizing we could not have been suburbanizing you could not have been suburbanizing they could not have been suburbanizing

Interrogative form

Simple form	V-ing form
could I suburbanize? could you suburbanize? could he suburbanize? could we suburbanize? could you suburbanize? could they suburbanize?	could I be suburbanizing? could you be suburbanizing? could he be suburbanizing? could we be suburbanizing? could you be suburbanizing? could they be suburbanizing?
Perfect	V-ing perfect
could I have suburbanized? could you have suburbanized? could he have suburbanized? could we have suburbanized? could you have suburbanized? could they have suburbanized?	could I have been suburbanizing? could you have been suburbanizing? could he have been suburbanizing? could we have been suburbanizing? could you have been suburbanizing? could they have been suburbanizing?

Interro-negative form

Simple form	V-ing form
could I not suburbanize? could you not suburbanize? could he not suburbanize? could we not suburbanize? could you not suburbanize? could they not suburbanize?	could I not be suburbanizing? could you not be suburbanizing? could he not be suburbanizing? could we not be suburbanizing? could you not be suburbanizing? could they not be suburbanizing?
Perfect	V-ing perfect
could I not have suburbanized? could you not have suburbanized? could he not have suburbanized? could we not have suburbanized? could you not have suburbanized? could they not have suburbanized?	could I not have been suburbanizing? could you not have been suburbanizing? could he not have been suburbanizing? could we not have been suburbanizing? could you not have been suburbanizing? could they not have been suburbanizing?