?? ?? ??? ??? ?? ??? ? ???? ???? ??? ?? ???? ???? ??? ? ?????If a grammatical basic principle that may be extra to ????can be a vowel ??and there's no other option aside from a vowel ??then that grammatical principle can't be extra to ???????? ?????????????? ????, ?? ?? ?? ???? ??? ????? ???????? ?? ?? ??????????????????????????. ???