虛擬語氣二

6、一般過去將來時
一般過去將來時由助動詞would加動詞原形構(gòu)成，主要表示從過去某一時 間角度看以后將要發(fā)生的動作。含這個時態(tài)的句子常帶一個表示“過去某個時 間點”的狀語。這個狀語或是一個短語，或是一個句子。這個時態(tài)常用于：賓語從句或間接引語中。例如：
When I thought about it, I wondered what their reaction would be.
當(dāng)我考慮這件事時，我想知道他們的反應(yīng)是什么。
She told me that she would go on trip to Europe the next day.
她告訴我，她第二天要去歐洲旅行。
Whenever he had time, he would help his mother with some housework.
無論他什么時 間有空,他總是幫他媽媽干點家務(wù)活。
No matter how difficult the work was , he would keep on doing it until he accomplished it . 不管工作有多難，他總會堅持不懈地把它干完。

7、一般將來完成時
一般將來完成時由shall (will) have 過去分詞構(gòu)成。主要表示在將來某時業(yè)已發(fā)生的動作。如：
After we finish this text, we’ll have learned twenty texts.
這課課文結(jié)束后，我們就學(xué)了二十課課文了。
By the next month, I’ll have finished my task. 到下個月，我將完成任務(wù)。
They will have hit the year’s target by the end of October.
到十月底他們就可完成全年的指標(biāo)了。

8、現(xiàn)在完成進行時
現(xiàn)在完成進行時由have（has）been加動詞的現(xiàn)在分詞構(gòu)成，表示發(fā)生在過去的某個動作延續(xù)到現(xiàn)在或剛剛完成，或許還要繼續(xù)延續(xù)。這種時態(tài)側(cè)重于這個動作的連續(xù)性，或者說不間斷性。例如：
I’ve been waiting for you for the whole morning. 整個上午我一直在等你。
It has been raining for three days. 雨連續(xù)下了三天。
Where have you been? 你去哪兒啦？
She has been busy preparing the exhibition since we met last time.
自我們上次見面以來，她就一直忙著籌備那個展覽。

9、過去完成進行時
過去完成進行時由had been加現(xiàn)在分詞構(gòu)成，表示過去某一時刻之前開始的動作或狀態(tài)一直延續(xù)到過去某一時刻。例如：
It had been raining cats and dogs for over a week and the downpour had caused landslides in many places. 傾盆大雨下了一周，在許多地區(qū)引發(fā)了山崩。
At last they got the telegram they had been expecting.
最后他們收到了他們一直盼望的電報。