???? & ?????? ???????? ???????? ???? ?? ??? ?? ???? ?? ????????If a grammatical basic principle that is certainly additional to ????is really a vowel ??and there is no other possibility other than a vowel ??then that grammatical theory cannot be added to ????- ???? ??: ??, ??, ??(??, ???????? ??), ??????, ??, ????????? ????????: ??? ???????????????