English verb conjugation
COULD SUBDIVIDE

Regular verb: subdivide - subdivided - subdivided

Affirmation

Simple form	V-ing form
I could subdivide you could subdivide he could subdivide we could subdivide you could subdivide they could subdivide	I could be subdividing you could be subdividing he could be subdividing we could be subdividing you could be subdividing they could be subdividing
Perfect	V-ing perfect
I could have subdivided you could have subdivided he could have subdivided we could have subdivided you could have subdivided they could have subdivided	I could have been subdividing you could have been subdividing he could have been subdividing we could have been subdividing you could have been subdividing they could have been subdividing

Negation

Simple form	V-ing form
I could not subdivide you could not subdivide he could not subdivide we could not subdivide you could not subdivide they could not subdivide	I could not be subdividing you could not be subdividing he could not be subdividing we could not be subdividing you could not be subdividing they could not be subdividing
Perfect	V-ing perfect
I could not have subdivided you could not have subdivided he could not have subdivided we could not have subdivided you could not have subdivided they could not have subdivided	I could not have been subdividing you could not have been subdividing he could not have been subdividing we could not have been subdividing you could not have been subdividing they could not have been subdividing

Interrogative form

Simple form	V-ing form
could I subdivide? could you subdivide? could he subdivide? could we subdivide? could you subdivide? could they subdivide?	could I be subdividing? could you be subdividing? could he be subdividing? could we be subdividing? could you be subdividing? could they be subdividing?
Perfect	V-ing perfect
could I have subdivided? could you have subdivided? could he have subdivided? could we have subdivided? could you have subdivided? could they have subdivided?	could I have been subdividing? could you have been subdividing? could he have been subdividing? could we have been subdividing? could you have been subdividing? could they have been subdividing?

Interro-negative form

Simple form	V-ing form
could I not subdivide? could you not subdivide? could he not subdivide? could we not subdivide? could you not subdivide? could they not subdivide?	could I not be subdividing? could you not be subdividing? could he not be subdividing? could we not be subdividing? could you not be subdividing? could they not be subdividing?
Perfect	V-ing perfect
could I not have subdivided? could you not have subdivided? could he not have subdivided? could we not have subdivided? could you not have subdivided? could they not have subdivided?	could I not have been subdividing? could you not have been subdividing? could he not have been subdividing? could we not have been subdividing? could you not have been subdividing? could they not have been subdividing?