中考網(wǎng)整理了關于2021年中考英語復習之過去完成進行時句型結構，希望對同學們有所幫助，僅供參考。

　　過去完成進行

　　過去完成進行時用來描述一項活動在其他事情發(fā)生之前已經(jīng)進行了多長時間。

　　這種時態(tài)常與下列時間短語連用:

　　... for X hours, days, months, 等等

　　... since Monday, Tuesday, 等等

　　基本結構

　　肯定的

　　Subject + had + been + verb + ing + object(s) + time Expression

　　主語+ had + been +動詞+ ing +賓語(s) +時間表達

　　She had been waiting for two hours when he finally arrived.

　　否定的

　　Subject + had not (hadn't) + been + verb + ing + object(s) + time Expression

　　主語+ had not (hadn't) + been +動詞+ ing +賓語(s) + time

　　They hadn't been working long when the boss asked them to change their focus.

　　問答

　　(Question Word) + had + subject + been + verb + ing + object(s) + time Expression

　　(疑問詞)+ had +主語+ been +動詞+ ing +賓語(s) +時間表達

　　How long had Tom been working on that project when they decided to give it to Pete?

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