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 couldn't suburbanize you couldn't suburbanize he couldn't suburbanize we couldn't suburbanize you couldn't suburbanize they couldn't suburbanize	I couldn't be suburbanizing you couldn't be suburbanizing he couldn't be suburbanizing we couldn't be suburbanizing you couldn't be suburbanizing they couldn't be suburbanizing
Perfect	V-ing perfect
I couldn't have suburbanized you couldn't have suburbanized he couldn't have suburbanized we couldn't have suburbanized you couldn't have suburbanized they couldn't have suburbanized	I couldn't have been suburbanizing you couldn't have been suburbanizing he couldn't have been suburbanizing we couldn't have been suburbanizing you couldn't have been suburbanizing they couldn't 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
couldn't I suburbanize? couldn't you suburbanize? couldn't he suburbanize? couldn't we suburbanize? couldn't you suburbanize? couldn't they suburbanize?	couldn't I be suburbanizing? couldn't you be suburbanizing? couldn't he be suburbanizing? couldn't we be suburbanizing? couldn't you be suburbanizing? couldn't they be suburbanizing?
Perfect	V-ing perfect
couldn't I have suburbanized? couldn't you have suburbanized? couldn't he have suburbanized? couldn't we have suburbanized? couldn't you have suburbanized? couldn't they have suburbanized?	couldn't I have been suburbanizing? couldn't you have been suburbanizing? couldn't he have been suburbanizing? couldn't we have been suburbanizing? couldn't you have been suburbanizing? couldn't they have been suburbanizing?