英語六級完成時態(tài)語法精講

　　時態(tài)

　　1)現在完成進行時態(tài) : 動作或狀態(tài)從過去某時開始,繼續(xù)到現在,可能繼續(xù)下去,也可能剛剛結束.

　　Ive been writing letters for an hour.

　　Ive been sitting in the garden.

　　2)過去完成進行時: 過去某個時刻以前一直在進行的動作

　　Id been working for some time when he called.

　　We had been waiting for her for two hours by the time she came.

　　3)將來完成進行時: 將來某個時刻以前一直在進行的動作.

　　By next summer, he will have been working here for twenty years.

　　In another months time shell have been studying here for three years.

　　4)將來完成時: 將來某時會業(yè)已發(fā)生的事.

　　I shall have finished this one before lunch.

　　Theyll have hit the years target by the end of October.

　　語態(tài)

　　可以有兩種被動結構的.類型,例如:

　　He was said to be jealous of her success.

　　It was said that he was jealous of her success.

　　能同時適用于上述兩個句型的主動詞通常都是表示估計,相信等意義的動詞,常見的有assume, believe, expect, fear, feel, know, presume, report, say, suppose, understand等.

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