English verb conjugation
COULD OVERDESIGN

Regular verb: overdesign - overdesigned - overdesigned

Affirmation

Simple form	V-ing form
I could overdesign you could overdesign he could overdesign we could overdesign you could overdesign they could overdesign	I could be overdesigning you could be overdesigning he could be overdesigning we could be overdesigning you could be overdesigning they could be overdesigning
Perfect	V-ing perfect
I could have overdesigned you could have overdesigned he could have overdesigned we could have overdesigned you could have overdesigned they could have overdesigned	I could have been overdesigning you could have been overdesigning he could have been overdesigning we could have been overdesigning you could have been overdesigning they could have been overdesigning

Negation

Simple form	V-ing form
I could not overdesign you could not overdesign he could not overdesign we could not overdesign you could not overdesign they could not overdesign	I could not be overdesigning you could not be overdesigning he could not be overdesigning we could not be overdesigning you could not be overdesigning they could not be overdesigning
Perfect	V-ing perfect
I could not have overdesigned you could not have overdesigned he could not have overdesigned we could not have overdesigned you could not have overdesigned they could not have overdesigned	I could not have been overdesigning you could not have been overdesigning he could not have been overdesigning we could not have been overdesigning you could not have been overdesigning they could not have been overdesigning

Interrogative form

Simple form	V-ing form
could I overdesign? could you overdesign? could he overdesign? could we overdesign? could you overdesign? could they overdesign?	could I be overdesigning? could you be overdesigning? could he be overdesigning? could we be overdesigning? could you be overdesigning? could they be overdesigning?
Perfect	V-ing perfect
could I have overdesigned? could you have overdesigned? could he have overdesigned? could we have overdesigned? could you have overdesigned? could they have overdesigned?	could I have been overdesigning? could you have been overdesigning? could he have been overdesigning? could we have been overdesigning? could you have been overdesigning? could they have been overdesigning?

Interro-negative form

Simple form	V-ing form
could I not overdesign? could you not overdesign? could he not overdesign? could we not overdesign? could you not overdesign? could they not overdesign?	could I not be overdesigning? could you not be overdesigning? could he not be overdesigning? could we not be overdesigning? could you not be overdesigning? could they not be overdesigning?
Perfect	V-ing perfect
could I not have overdesigned? could you not have overdesigned? could he not have overdesigned? could we not have overdesigned? could you not have overdesigned? could they not have overdesigned?	could I not have been overdesigning? could you not have been overdesigning? could he not have been overdesigning? could we not have been overdesigning? could you not have been overdesigning? could they not have been overdesigning?