It is well-known that grammar rules learned in class are hard to use in communication. This paper explores an answer to this puzzle, focusing on the so-called third person singular present -(e)s in English. Observing that the core nature of the hard-to-use rules is best described in terms of 'form', rather than 'meaning' and 'use', the paper shows that the formal descriptions of the grammar rules presented to learners do not correctly represent the syntactic nature of the linguistic phenomena concerned. It proposes that an essential prerequisite for more efficient and systematic grammar teaching and learning is a comprehensive understanding of the linguistic nature of grammar categories and items to be taught to learners.

Ⅰ. 서론
Ⅱ. 영어 3인칭 단수 현재의 교육 내용
Ⅲ. 영어 3인칭 단수 현재의 언어적 본질
Ⅳ. 문법 항목의 언어적 본질에 대한 이해의 필요성
참고문헌

• 양현권(서울대학교) | Yang, Hyun-Kwon