English verb conjugation
COULD PRENUMBER

Regular verb: prenumber - prenumbered - prenumbered

Affirmation

Simple form	V-ing form
I could prenumber you could prenumber he could prenumber we could prenumber you could prenumber they could prenumber	I could be prenumbering you could be prenumbering he could be prenumbering we could be prenumbering you could be prenumbering they could be prenumbering
Perfect	V-ing perfect
I could have prenumbered you could have prenumbered he could have prenumbered we could have prenumbered you could have prenumbered they could have prenumbered	I could have been prenumbering you could have been prenumbering he could have been prenumbering we could have been prenumbering you could have been prenumbering they could have been prenumbering

Negation

Simple form	V-ing form
I could not prenumber you could not prenumber he could not prenumber we could not prenumber you could not prenumber they could not prenumber	I could not be prenumbering you could not be prenumbering he could not be prenumbering we could not be prenumbering you could not be prenumbering they could not be prenumbering
Perfect	V-ing perfect
I could not have prenumbered you could not have prenumbered he could not have prenumbered we could not have prenumbered you could not have prenumbered they could not have prenumbered	I could not have been prenumbering you could not have been prenumbering he could not have been prenumbering we could not have been prenumbering you could not have been prenumbering they could not have been prenumbering

Interrogative form

Simple form	V-ing form
could I prenumber? could you prenumber? could he prenumber? could we prenumber? could you prenumber? could they prenumber?	could I be prenumbering? could you be prenumbering? could he be prenumbering? could we be prenumbering? could you be prenumbering? could they be prenumbering?
Perfect	V-ing perfect
could I have prenumbered? could you have prenumbered? could he have prenumbered? could we have prenumbered? could you have prenumbered? could they have prenumbered?	could I have been prenumbering? could you have been prenumbering? could he have been prenumbering? could we have been prenumbering? could you have been prenumbering? could they have been prenumbering?

Interro-negative form

Simple form	V-ing form
could I not prenumber? could you not prenumber? could he not prenumber? could we not prenumber? could you not prenumber? could they not prenumber?	could I not be prenumbering? could you not be prenumbering? could he not be prenumbering? could we not be prenumbering? could you not be prenumbering? could they not be prenumbering?
Perfect	V-ing perfect
could I not have prenumbered? could you not have prenumbered? could he not have prenumbered? could we not have prenumbered? could you not have prenumbered? could they not have prenumbered?	could I not have been prenumbering? could you not have been prenumbering? could he not have been prenumbering? could we not have been prenumbering? could you not have been prenumbering? could they not have been prenumbering?