I could aprize you could aprize he could aprize we could aprize you could aprize they could aprize
V-ing form
I could be aprizing you could be aprizing he could be aprizing we could be aprizing you could be aprizing they could be aprizing
Perfect
I could have aprized you could have aprized he could have aprized we could have aprized you could have aprized they could have aprized
V-ing perfect
I could have been aprizing you could have been aprizing he could have been aprizing we could have been aprizing you could have been aprizing they could have been aprizing
Negation
Simple form
I could not aprize you could not aprize he could not aprize we could not aprize you could not aprize they could not aprize
V-ing form
I could not be aprizing you could not be aprizing he could not be aprizing we could not be aprizing you could not be aprizing they could not be aprizing
Perfect
I could not have aprized you could not have aprized he could not have aprized we could not have aprized you could not have aprized they could not have aprized
V-ing perfect
I could not have been aprizing you could not have been aprizing he could not have been aprizing we could not have been aprizing you could not have been aprizing they could not have been aprizing
Interrogative form
Simple form
could I aprize? could you aprize? could he aprize? could we aprize? could you aprize? could they aprize?
V-ing form
could I be aprizing? could you be aprizing? could he be aprizing? could we be aprizing? could you be aprizing? could they be aprizing?
Perfect
could I have aprized? could you have aprized? could he have aprized? could we have aprized? could you have aprized? could they have aprized?
V-ing perfect
could I have been aprizing? could you have been aprizing? could he have been aprizing? could we have been aprizing? could you have been aprizing? could they have been aprizing?
Interro-negative form
Simple form
could I not aprize? could you not aprize? could he not aprize? could we not aprize? could you not aprize? could they not aprize?
V-ing form
could I not be aprizing? could you not be aprizing? could he not be aprizing? could we not be aprizing? could you not be aprizing? could they not be aprizing?
Perfect
could I not have aprized? could you not have aprized? could he not have aprized? could we not have aprized? could you not have aprized? could they not have aprized?
V-ing perfect
could I not have been aprizing? could you not have been aprizing? could he not have been aprizing? could we not have been aprizing? could you not have been aprizing? could they not have been aprizing?