I could arabize you could arabize she could arabize we could arabize you could arabize they could arabize
V-ing form
I could be arabizing you could be arabizing she could be arabizing we could be arabizing you could be arabizing they could be arabizing
Perfect
I could have arabized you could have arabized she could have arabized we could have arabized you could have arabized they could have arabized
V-ing perfect
I could have been arabizing you could have been arabizing she could have been arabizing we could have been arabizing you could have been arabizing they could have been arabizing
Negation
Simple form
I could not arabize you could not arabize she could not arabize we could not arabize you could not arabize they could not arabize
V-ing form
I could not be arabizing you could not be arabizing she could not be arabizing we could not be arabizing you could not be arabizing they could not be arabizing
Perfect
I could not have arabized you could not have arabized she could not have arabized we could not have arabized you could not have arabized they could not have arabized
V-ing perfect
I could not have been arabizing you could not have been arabizing she could not have been arabizing we could not have been arabizing you could not have been arabizing they could not have been arabizing
Interrogative form
Simple form
could I arabize? could you arabize? could she arabize? could we arabize? could you arabize? could they arabize?
V-ing form
could I be arabizing? could you be arabizing? could she be arabizing? could we be arabizing? could you be arabizing? could they be arabizing?
Perfect
could I have arabized? could you have arabized? could she have arabized? could we have arabized? could you have arabized? could they have arabized?
V-ing perfect
could I have been arabizing? could you have been arabizing? could she have been arabizing? could we have been arabizing? could you have been arabizing? could they have been arabizing?
Interro-negative form
Simple form
could I not arabize? could you not arabize? could she not arabize? could we not arabize? could you not arabize? could they not arabize?
V-ing form
could I not be arabizing? could you not be arabizing? could she not be arabizing? could we not be arabizing? could you not be arabizing? could they not be arabizing?
Perfect
could I not have arabized? could you not have arabized? could she not have arabized? could we not have arabized? could you not have arabized? could they not have arabized?
V-ing perfect
could I not have been arabizing? could you not have been arabizing? could she not have been arabizing? could we not have been arabizing? could you not have been arabizing? could they not have been arabizing?