高中英语十六种时态用法详解之过去将来完成进行时
导语：中学英语涉及到的时态一共有16种，下面给大家准备了过去将来完成进行时用法说明，希望对大家复习备考有帮助。
一、结构形式
过去完成进行时由“would have been+现在分词”构成。
二、用法归纳
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：
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 want you thinking of food and wine, because these last years would have been miserable for you. 我要你只想吃喝，因为最近几年你的生活够苦的。
在间接引语中，将来完成进行时通常要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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