过去将来完成进行时的语法知识
<p>过去将来完成进行时表示从过去某时间开始一直延续到过去未来某一时间的动作，常与由介词<span word="by">by</span>等引导的表示到过去未来的某时的时间副词连用。</p><p>形式</p><p>由<span word="should">should</span>/<span word="would">would</span> <span word="have">have</span> <span word="been">been</span> + <span word="v">v</span>-<span word="ing">ing</span>构成;</p><p>否定形式<span word="should">should</span>/<span word="would">would</span>+<span word="not">not</span> <span word="have">have</span> <span word="been">been</span> + <span word="v">v</span>-<span word="ing">ing</span>;</p><p>疑问形式是将<span word="should">should</span>/<span word="would">would</span>提前。</p><p>基本用法</p><p>过去将来完成进行时表示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，视上下文而定。如：</p><p><span word="He">He</span> <span word="said">said</span> <span word="that">that</span> <span word="by">by</span> <span word="the">the</span> <span word="end">end</span> <span word="of">of</span> <span word="the">the</span> <span word="spring">spring</span> <span word="term">term</span> <span word="he">he</span> <span word="would">would</span> <span word="have">have</span> <span word="been">been</span> <span word="studying">studying</span> <span word="English">English</span> <span word="for">for</span> <span word="three">three</span> <span word="years">years</span>.</p><p>他说到春季(即下)学期末，他将学了三年英语了。</p><p><span word="He">He</span> <span word="told">told</span> <span word="me">me</span> <span word="that">that</span> <span word="by">by</span> <span word="the">the</span> <span word="end">end</span> <span word="of">of</span> <span word="the">the</span> <span word="year">year</span>. <span word="he">he</span> <span word="would">would</span> <span word="have">have</span> <span word="been">been</span> <span word="living">living</span> <span word="there">there</span> <span word="for">for</span> <span word="thirty">thirty</span> <span word="years">years</span>.</p><p>他告诉我，到年底他在那里住了有30年了。</p>
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