?? ???? ???????? ?????? ????????? ?? ??????.If a grammatical basic principle which is added to ????is a vowel ??and there is no other alternative other than a vowel ??then that grammatical principle can not be added to ????????? ???? ?? '??????' ?????????? ?? ???????? ???? ?? ?????? ???????? ?? = ????&??????®??? ?? ???????? ?? ?? ???????? ????????