English verb conjugation
COULD CROSS-REFER

Regular verb: cross-refer - cross-refered - cross-refered

Affirmation

Simple form	V-ing form
I could cross-refer you could cross-refer he could cross-refer we could cross-refer you could cross-refer they could cross-refer	I could be cross-refering you could be cross-refering he could be cross-refering we could be cross-refering you could be cross-refering they could be cross-refering
Perfect	V-ing perfect
I could have cross-refered you could have cross-refered he could have cross-refered we could have cross-refered you could have cross-refered they could have cross-refered	I could have been cross-refering you could have been cross-refering he could have been cross-refering we could have been cross-refering you could have been cross-refering they could have been cross-refering

Negation

Simple form	V-ing form
I could not cross-refer you could not cross-refer he could not cross-refer we could not cross-refer you could not cross-refer they could not cross-refer	I could not be cross-refering you could not be cross-refering he could not be cross-refering we could not be cross-refering you could not be cross-refering they could not be cross-refering
Perfect	V-ing perfect
I could not have cross-refered you could not have cross-refered he could not have cross-refered we could not have cross-refered you could not have cross-refered they could not have cross-refered	I could not have been cross-refering you could not have been cross-refering he could not have been cross-refering we could not have been cross-refering you could not have been cross-refering they could not have been cross-refering

Interrogative form

Simple form	V-ing form
could I cross-refer? could you cross-refer? could he cross-refer? could we cross-refer? could you cross-refer? could they cross-refer?	could I be cross-refering? could you be cross-refering? could he be cross-refering? could we be cross-refering? could you be cross-refering? could they be cross-refering?
Perfect	V-ing perfect
could I have cross-refered? could you have cross-refered? could he have cross-refered? could we have cross-refered? could you have cross-refered? could they have cross-refered?	could I have been cross-refering? could you have been cross-refering? could he have been cross-refering? could we have been cross-refering? could you have been cross-refering? could they have been cross-refering?

Interro-negative form

Simple form	V-ing form
could I not cross-refer? could you not cross-refer? could he not cross-refer? could we not cross-refer? could you not cross-refer? could they not cross-refer?	could I not be cross-refering? could you not be cross-refering? could he not be cross-refering? could we not be cross-refering? could you not be cross-refering? could they not be cross-refering?
Perfect	V-ing perfect
could I not have cross-refered? could you not have cross-refered? could he not have cross-refered? could we not have cross-refered? could you not have cross-refered? could they not have cross-refered?	could I not have been cross-refering? could you not have been cross-refering? could he not have been cross-refering? could we not have been cross-refering? could you not have been cross-refering? could they not have been cross-refering?