have been 過去分詞是什么時態(tài)

回答

瑞文問答

2024-07-28

have been 過去分詞是現(xiàn)在完成進(jìn)行時。
have：vt. 有; 持有; 占有; 由…組成; 顯示出，帶有(性質(zhì)、特征)。
been：v. 曾經(jīng); 曾經(jīng)到過(某地)。

擴(kuò)展資料

　　His family have been a very positive influence on him.

　　他的家庭對他有十分良好的影響。

　　There have been many changes in recent years.

　　近幾年發(fā)生了許多變化。

　　They have been working on the perfection of the new model.

　　他們一直在努力完善新型號。

　　None of this would have been possible without their help.

　　如果沒有他們的協(xié)助，這事沒有一樣能辦成。

　　What books have been set for the English course?

　　英語課布置要用哪些書？