English verb conjugation
COULD CROSS-POST

Regular verb: cross-post - cross-posted - cross-posted

Affirmation

Simple form	V-ing form
I could cross-post you could cross-post he could cross-post we could cross-post you could cross-post they could cross-post	I could be cross-posting you could be cross-posting he could be cross-posting we could be cross-posting you could be cross-posting they could be cross-posting
Perfect	V-ing perfect
I could have cross-posted you could have cross-posted he could have cross-posted we could have cross-posted you could have cross-posted they could have cross-posted	I could have been cross-posting you could have been cross-posting he could have been cross-posting we could have been cross-posting you could have been cross-posting they could have been cross-posting

Negation

Simple form	V-ing form
I could not cross-post you could not cross-post he could not cross-post we could not cross-post you could not cross-post they could not cross-post	I could not be cross-posting you could not be cross-posting he could not be cross-posting we could not be cross-posting you could not be cross-posting they could not be cross-posting
Perfect	V-ing perfect
I could not have cross-posted you could not have cross-posted he could not have cross-posted we could not have cross-posted you could not have cross-posted they could not have cross-posted	I could not have been cross-posting you could not have been cross-posting he could not have been cross-posting we could not have been cross-posting you could not have been cross-posting they could not have been cross-posting

Interrogative form

Simple form	V-ing form
could I cross-post? could you cross-post? could he cross-post? could we cross-post? could you cross-post? could they cross-post?	could I be cross-posting? could you be cross-posting? could he be cross-posting? could we be cross-posting? could you be cross-posting? could they be cross-posting?
Perfect	V-ing perfect
could I have cross-posted? could you have cross-posted? could he have cross-posted? could we have cross-posted? could you have cross-posted? could they have cross-posted?	could I have been cross-posting? could you have been cross-posting? could he have been cross-posting? could we have been cross-posting? could you have been cross-posting? could they have been cross-posting?

Interro-negative form

Simple form	V-ing form
could I not cross-post? could you not cross-post? could he not cross-post? could we not cross-post? could you not cross-post? could they not cross-post?	could I not be cross-posting? could you not be cross-posting? could he not be cross-posting? could we not be cross-posting? could you not be cross-posting? could they not be cross-posting?
Perfect	V-ing perfect
could I not have cross-posted? could you not have cross-posted? could he not have cross-posted? could we not have cross-posted? could you not have cross-posted? could they not have cross-posted?	could I not have been cross-posting? could you not have been cross-posting? could he not have been cross-posting? could we not have been cross-posting? could you not have been cross-posting? could they not have been cross-posting?