�?블로�?전체 카테고리 글 전체글 보기 화면 최상단으�?이동 If a grammatical principle that may be additional to 서툴�?can be a vowel �?and there is no other alternative besides a vowel �?then that grammatical theory cannot be added to 서툴�? In practice, the phrase “있다�?can modify to a differe