过去将来时结构、用法、定义详细讲解
 

一、过去将来时的结构

should/would+动词原形

二、过去将来时用法、定义详细讲解

1、表示从过去某时看来将要发生的动作或存在状态。
例句:
He said that he would wait for us at the bus stop.他说他要在车站等我们的。
She hoped that they would meet again someday.她希望将来有一天他们能再见面。
2、表示过去的某种习惯性行为,只用would。
例句:
Whenever we had trouble,he would come to help us.每当我们遇到困难时,他总会给予帮助。
3、表示过去将来时的几种结构。
1)was/were going to do这种结构表示准备、计划做某事,或将要发生某事。
例句:
She was not going to do anything that evening.那天晚上她不准备做任何事。
When they arrived the plane was just going to take off.飞机正要起飞时他们到了。
2)was/were about to do这种结构表示“正要、即将”。
例句:
He was about to be transferred to a seaside town.他正要被调往一座海滨小城。
3)was/were on the point of doing这种结构表示“正要……时”。
例句:
He was on the point of leaving when we came in.我们进来时,他正要动身。
4)was/were due to do这种结构表示“定于(某事做某事)”。
例句:
The ship was due to leave at mid-night.船定于午夜起航。
The talk was due to last for three days.谈话将要进行三天。
5)go,come,leave,take off等少数动词可用过去进行时表示过去将要发生的情况。
例句:
A lot of people were coming to watch the fireworks.有许多人要来观看焰火。
She told mother that she was going to a dance with Tom.她告诉母亲,她要和汤姆一起去参加一个舞会。
6)was/were to do这种结构表示曾计划做某事,如果计划的事情没有实现,要用不定式完成式。
例句:
She said she was to take up the position.她说她要承担这个职务。
She said she was to have taken up the position,but later changed her mind.她说她本打算承担这个职务的,但是后来改变了主意。