過去未來式

有時候我們表達一件過去的事，對過去那個當下來說是在發生在未來某個時間點。當我們要表達在過去時間下的未來，可以用常規未來時態的過去式。

看下面未來式的句子和其相對應的過去式。

will We think he will win the election.	would We thought he would win the election.
am/is/are going to We’re going to have a drink to celebrate my birthday this evening.	was/were going to We were going to have a drink after work, but the boss made us stay.
現在進行式 We are getting married soon, and I’d like you to be my maid of honour.	過去進行式 She was getting married soon and she wanted me to be her maid of honour.
未來進行式 Will you be going home this summer?	Would be + 動詞-ing She told her mother that she wouldn’t be going home that summer.
未來完成式 He says he will have finished the book in two weeks.	Would have + 過去分詞 When I found him, he said he would have finished the book in two weeks.

在表示過去未來式時，也有別的方式可以表達未來時間，看以下的表格。

am/is/are about to + 不定詞 The new app for electronic payment is about to be launched.	was/were about to + 不定詞 I was about to confess what I had done, but she told me not to do it.
am/is/are on the brink/point/verge of + 動詞-ing Artificial Intelligence is on the verge of revolutionizing the world.	was/were on the brink/point/verge of + 動詞-ing I was on the verge of saying something, but I decided to keep quiet.
am/is/are to + 不定詞 The president is to sign the agreement before he leaves office.	was/were to + 不定詞 The victim, Eric Watts, 24, was to arrive home for his wedding on April 19.
am/is/are due to + 不定詞 They are due to leave the country next week when their visas expire.	was/were due to + 不定詞 He was due to leave the country on Saturday, but the judge didn’t allow it.

過去未來式 – 練習題

1. They asked me if I them with their problems, but I don't have time for it.

2. She to jail, but the last trial was a success to let her go.

3. Last week she was very busy because she to move to her new apartment.

4. I asked my family not to bother me that evening because I for my national exam all night.

5. I a new laptop, but my mother gave me her computer and decided not to buy it anymore.

6. I went to the crime scene and saw the criminal had a gun, he the police officer.

7. She thought you the interview.

8. He forgot the keys on the table before they for a business trip.

9. Before she arrived at the airport, she you to fetch her.

10. She promised she an end to the situation, but failed to do so.