I could bail you could bail he could bail we could bail you could bail they could bail
V-ing form
I could be bailing you could be bailing he could be bailing we could be bailing you could be bailing they could be bailing
Perfect
I could have bailed you could have bailed he could have bailed we could have bailed you could have bailed they could have bailed
V-ing perfect
I could have been bailing you could have been bailing he could have been bailing we could have been bailing you could have been bailing they could have been bailing
Negation
Simple form
I could not bail you could not bail he could not bail we could not bail you could not bail they could not bail
V-ing form
I could not be bailing you could not be bailing he could not be bailing we could not be bailing you could not be bailing they could not be bailing
Perfect
I could not have bailed you could not have bailed he could not have bailed we could not have bailed you could not have bailed they could not have bailed
V-ing perfect
I could not have been bailing you could not have been bailing he could not have been bailing we could not have been bailing you could not have been bailing they could not have been bailing
Interrogative form
Simple form
could I bail? could you bail? could he bail? could we bail? could you bail? could they bail?
V-ing form
could I be bailing? could you be bailing? could he be bailing? could we be bailing? could you be bailing? could they be bailing?
Perfect
could I have bailed? could you have bailed? could he have bailed? could we have bailed? could you have bailed? could they have bailed?
V-ing perfect
could I have been bailing? could you have been bailing? could he have been bailing? could we have been bailing? could you have been bailing? could they have been bailing?
Interro-negative form
Simple form
could I not bail? could you not bail? could he not bail? could we not bail? could you not bail? could they not bail?
V-ing form
could I not be bailing? could you not be bailing? could he not be bailing? could we not be bailing? could you not be bailing? could they not be bailing?
Perfect
could I not have bailed? could you not have bailed? could he not have bailed? could we not have bailed? could you not have bailed? could they not have bailed?
V-ing perfect
could I not have been bailing? could you not have been bailing? could he not have been bailing? could we not have been bailing? could you not have been bailing? could they not have been bailing?