过去将来完成进行时是英语时态中比较常见的一种，但是，大家对它的用法可能还是不太了解。今天，小编为大家准备了相关的语法知识，将要为大家来讲解一下：过去将来完成进行时的概念和用法，一起来看看吧！
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一、过去将来完成进行时的用法
过去将来完成进行时表动作从过去某一时间开始一直延续到过去将来某一时间。动作是否继续下去，由上下文决定。如：
I heard by July you’d have been teaching here for ten years. 我听说到七月份，你就在这里教了10年书了。
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二、过去将来完成进行时的构成
过去完成进行时由“would have been+现在分词”构成。如：
He said that by the end of the spring term he would have been studying English for three years. 他说到了春季学期末，他就学了三年英语了。
I knew by that time he would have been working there for 30 years. 我知道到那时他他就在那儿工作满30年了。
She told me she’d have been teaching in that university for 20 years by that summer. 她告诉我到年年夏天她在那所大学教书就满20年了。
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三、间接引语与过去将来完成进行时
在间接引语中，若主句为过去时态，则用于宾语从句中的间接引语则要把将来完成进行时改为过去将来完成进行时。如：
I know by this time next week you’ll have been working here for 30 years.
→I knew by that time he would have been working there for 30 years.
She will have been teaching in this university for 20 years by this summer.
→She told me she’d have been teaching in that university for 20 years by that summer.
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怎么样，看完了这篇文章，大家是不是对过去将来完成进行时的用法有了初步的了解了呢？喜欢就赶快收藏起来吧~
