來源:網(wǎng)絡(luò)資源 2023-02-18 19:19:55
過去完成時(shí)的結(jié)構(gòu)特點(diǎn)
概念:過去完成時(shí)表示在過去某一時(shí)間或動(dòng)作之前已經(jīng)發(fā)生或完成了的動(dòng)作,即“過去的過去( past-in-the-past )”。
過去完成時(shí)過去時(shí)現(xiàn)在進(jìn)行時(shí)
構(gòu)成:過去完成時(shí)由“助動(dòng)詞had +過去分詞”構(gòu)成,其中had通用于各種人稱。
They had already had breakfast before they arrived at the hotel. She had finished writing the composition by 10:00 this morning.
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