could suburbanize
Regular verb: suburbanize - suburbanized- suburbanized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?