과거완료형과 단순과거형 read more »
과거완료형 (I had done) read more »
For and since, read more »
과거진형형과 단순과거형 read more »
단순과거형과 현재완료형
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현재완료형과 단순과거형 2 (I have done and I did) read more »
현재완료형과 단순과거형 1 (I have done and I did) read more »
과거진행형 (I was doing) read more »
현재완료형과 단순과거형 (I have done and read more »
현재완료형 (1) (I have done) read more »
