I could arabicize you could arabicize he could arabicize we could arabicize you could arabicize they could arabicize
V-ing form
I could be arabicizing you could be arabicizing he could be arabicizing we could be arabicizing you could be arabicizing they could be arabicizing
Perfect
I could have arabicized you could have arabicized he could have arabicized we could have arabicized you could have arabicized they could have arabicized
V-ing perfect
I could have been arabicizing you could have been arabicizing he could have been arabicizing we could have been arabicizing you could have been arabicizing they could have been arabicizing
Negation
Simple form
I could not arabicize you could not arabicize he could not arabicize we could not arabicize you could not arabicize they could not arabicize
V-ing form
I could not be arabicizing you could not be arabicizing he could not be arabicizing we could not be arabicizing you could not be arabicizing they could not be arabicizing
Perfect
I could not have arabicized you could not have arabicized he could not have arabicized we could not have arabicized you could not have arabicized they could not have arabicized
V-ing perfect
I could not have been arabicizing you could not have been arabicizing he could not have been arabicizing we could not have been arabicizing you could not have been arabicizing they could not have been arabicizing
Interrogative form
Simple form
could I arabicize? could you arabicize? could he arabicize? could we arabicize? could you arabicize? could they arabicize?
V-ing form
could I be arabicizing? could you be arabicizing? could he be arabicizing? could we be arabicizing? could you be arabicizing? could they be arabicizing?
Perfect
could I have arabicized? could you have arabicized? could he have arabicized? could we have arabicized? could you have arabicized? could they have arabicized?
V-ing perfect
could I have been arabicizing? could you have been arabicizing? could he have been arabicizing? could we have been arabicizing? could you have been arabicizing? could they have been arabicizing?
Interro-negative form
Simple form
could I not arabicize? could you not arabicize? could he not arabicize? could we not arabicize? could you not arabicize? could they not arabicize?
V-ing form
could I not be arabicizing? could you not be arabicizing? could he not be arabicizing? could we not be arabicizing? could you not be arabicizing? could they not be arabicizing?
Perfect
could I not have arabicized? could you not have arabicized? could he not have arabicized? could we not have arabicized? could you not have arabicized? could they not have arabicized?
V-ing perfect
could I not have been arabicizing? could you not have been arabicizing? could he not have been arabicizing? could we not have been arabicizing? could you not have been arabicizing? could they not have been arabicizing?