English verb conjugation
COULD OVERBUILD

Irregular verb: overbuild - overbuilt - overbuilt

Affirmation

Simple form	V-ing form
I could overbuild you could overbuild he could overbuild we could overbuild you could overbuild they could overbuild	I could be overbuilding you could be overbuilding he could be overbuilding we could be overbuilding you could be overbuilding they could be overbuilding
Perfect	V-ing perfect
I could have overbuilt you could have overbuilt he could have overbuilt we could have overbuilt you could have overbuilt they could have overbuilt	I could have been overbuilding you could have been overbuilding he could have been overbuilding we could have been overbuilding you could have been overbuilding they could have been overbuilding

Negation

Simple form	V-ing form
I could not overbuild you could not overbuild he could not overbuild we could not overbuild you could not overbuild they could not overbuild	I could not be overbuilding you could not be overbuilding he could not be overbuilding we could not be overbuilding you could not be overbuilding they could not be overbuilding
Perfect	V-ing perfect
I could not have overbuilt you could not have overbuilt he could not have overbuilt we could not have overbuilt you could not have overbuilt they could not have overbuilt	I could not have been overbuilding you could not have been overbuilding he could not have been overbuilding we could not have been overbuilding you could not have been overbuilding they could not have been overbuilding

Interrogative form

Simple form	V-ing form
could I overbuild? could you overbuild? could he overbuild? could we overbuild? could you overbuild? could they overbuild?	could I be overbuilding? could you be overbuilding? could he be overbuilding? could we be overbuilding? could you be overbuilding? could they be overbuilding?
Perfect	V-ing perfect
could I have overbuilt? could you have overbuilt? could he have overbuilt? could we have overbuilt? could you have overbuilt? could they have overbuilt?	could I have been overbuilding? could you have been overbuilding? could he have been overbuilding? could we have been overbuilding? could you have been overbuilding? could they have been overbuilding?

Interro-negative form

Simple form	V-ing form
could I not overbuild? could you not overbuild? could he not overbuild? could we not overbuild? could you not overbuild? could they not overbuild?	could I not be overbuilding? could you not be overbuilding? could he not be overbuilding? could we not be overbuilding? could you not be overbuilding? could they not be overbuilding?
Perfect	V-ing perfect
could I not have overbuilt? could you not have overbuilt? could he not have overbuilt? could we not have overbuilt? could you not have overbuilt? could they not have overbuilt?	could I not have been overbuilding? could you not have been overbuilding? could he not have been overbuilding? could we not have been overbuilding? could you not have been overbuilding? could they not have been overbuilding?