I could polemicize you could polemicize he could polemicize we could polemicize you could polemicize they could polemicize
V-ing form
I could be polemicizing you could be polemicizing he could be polemicizing we could be polemicizing you could be polemicizing they could be polemicizing
Perfect
I could have polemicized you could have polemicized he could have polemicized we could have polemicized you could have polemicized they could have polemicized
V-ing perfect
I could have been polemicizing you could have been polemicizing he could have been polemicizing we could have been polemicizing you could have been polemicizing they could have been polemicizing
Negation
Simple form
I could not polemicize you could not polemicize he could not polemicize we could not polemicize you could not polemicize they could not polemicize
V-ing form
I could not be polemicizing you could not be polemicizing he could not be polemicizing we could not be polemicizing you could not be polemicizing they could not be polemicizing
Perfect
I could not have polemicized you could not have polemicized he could not have polemicized we could not have polemicized you could not have polemicized they could not have polemicized
V-ing perfect
I could not have been polemicizing you could not have been polemicizing he could not have been polemicizing we could not have been polemicizing you could not have been polemicizing they could not have been polemicizing
Interrogative form
Simple form
could I polemicize? could you polemicize? could he polemicize? could we polemicize? could you polemicize? could they polemicize?
V-ing form
could I be polemicizing? could you be polemicizing? could he be polemicizing? could we be polemicizing? could you be polemicizing? could they be polemicizing?
Perfect
could I have polemicized? could you have polemicized? could he have polemicized? could we have polemicized? could you have polemicized? could they have polemicized?
V-ing perfect
could I have been polemicizing? could you have been polemicizing? could he have been polemicizing? could we have been polemicizing? could you have been polemicizing? could they have been polemicizing?
Interro-negative form
Simple form
could I not polemicize? could you not polemicize? could he not polemicize? could we not polemicize? could you not polemicize? could they not polemicize?
V-ing form
could I not be polemicizing? could you not be polemicizing? could he not be polemicizing? could we not be polemicizing? could you not be polemicizing? could they not be polemicizing?
Perfect
could I not have polemicized? could you not have polemicized? could he not have polemicized? could we not have polemicized? could you not have polemicized? could they not have polemicized?
V-ing perfect
could I not have been polemicizing? could you not have been polemicizing? could he not have been polemicizing? could we not have been polemicizing? could you not have been polemicizing? could they not have been polemicizing?