지말선기초영문법 B 5강(#be동사의 세가지 쓰임).

2018 53:08
Synopsis
be 동사 개인기 세가지 1.--이 있다, --이다. 2. 진행형 만들때 (be--ing) 3. 수동태 만들때 (be p.p.) #영어독학#왕기초영어#지말선기초 ...
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