I could bulge you could bulge he could bulge we could bulge you could bulge they could bulge
V-ing form
I could be bulging you could be bulging he could be bulging we could be bulging you could be bulging they could be bulging
Perfect
I could have bulged you could have bulged he could have bulged we could have bulged you could have bulged they could have bulged
V-ing perfect
I could have been bulging you could have been bulging he could have been bulging we could have been bulging you could have been bulging they could have been bulging
Negation
Simple form
I could not bulge you could not bulge he could not bulge we could not bulge you could not bulge they could not bulge
V-ing form
I could not be bulging you could not be bulging he could not be bulging we could not be bulging you could not be bulging they could not be bulging
Perfect
I could not have bulged you could not have bulged he could not have bulged we could not have bulged you could not have bulged they could not have bulged
V-ing perfect
I could not have been bulging you could not have been bulging he could not have been bulging we could not have been bulging you could not have been bulging they could not have been bulging
Interrogative form
Simple form
could I bulge? could you bulge? could he bulge? could we bulge? could you bulge? could they bulge?
V-ing form
could I be bulging? could you be bulging? could he be bulging? could we be bulging? could you be bulging? could they be bulging?
Perfect
could I have bulged? could you have bulged? could he have bulged? could we have bulged? could you have bulged? could they have bulged?
V-ing perfect
could I have been bulging? could you have been bulging? could he have been bulging? could we have been bulging? could you have been bulging? could they have been bulging?
Interro-negative form
Simple form
could I not bulge? could you not bulge? could he not bulge? could we not bulge? could you not bulge? could they not bulge?
V-ing form
could I not be bulging? could you not be bulging? could he not be bulging? could we not be bulging? could you not be bulging? could they not be bulging?
Perfect
could I not have bulged? could you not have bulged? could he not have bulged? could we not have bulged? could you not have bulged? could they not have bulged?
V-ing perfect
could I not have been bulging? could you not have been bulging? could he not have been bulging? could we not have been bulging? could you not have been bulging? could they not have been bulging?