什么是过去将来进行时？
过去将来进行时是英语中的一种复合时态，用来描述在过去某个时间点之前已经开始并一直持续到另一个过去将来时间点的动作或状态。它结合了过去将来时和过去进行时的特点，强调在过去某一时间点开始并一直持续到另一个过去将来时间点的动作。以下是一些例子，展示了过去将来进行时的用法：
- 从过去到过去将来时间点一直持续的动作：
- By that time last year, I was going to have been studying for three months.（在去年的那个时间，我已经学习了三个月。）
- By the end of last month, they were going to have been working on the project for a while.（到上个月底，他们已经在做这个项目一段时间了。）
- 强调持续性和延续性：
- He was going to have been practicing the piano for weeks before the recital.（在演奏会之前，他已经练习了几周的钢琴。）
- They were going to have been traveling around the country for a long time before they settled down.（在安定下来之前，他们已经在全国各地旅行了很长时间。）
- 从过去某一点到过去将来时间点一直进行的状态：
- She was going to have been living in that city for years before she moved to another country.（在搬到另一个国家之前，她已经在那个城市住了好几年。）
- He was going to have been feeling unwell for days before he finally went to the doctor.（在最终去看医生之前，他已经感到不适好几天了。）
表示从过去某点看将来某会正在进行的动作。
* He said he would be setting off on the 9 o’clock train.他说他将乘坐9点钟的火车走。
* They said that they would be expecting us the next week.他们说他们盼我们下个星期去。
* He said he could not be back because he would be having a meeting.他说他不能回来，因为要开会。
* The plane took off. John would be flying to America.飞机起飞了，约翰要飞往美国。
* I never realized that some day I would be living in China. 我从未想到将来有一天会在中国居住。
* John told us that Mary would be coming next day. 约翰告诉我们玛丽第二天来。
* The new name he would be using was Jack Jones. 他将用的新名是杰克•琼斯。
* He would pay the rest as he would be leaving France. 其余款项，他将在离开法国时付清。
