作业帮过去进行时和过去完成进行时的区别?
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过去进行时和过去完成进行时的区别?
过去进行时和过去完成进行时的区别?
过去进行时和过去完成进行时的区别?
Past perfect tense ------ had + past tense verb:
Tense that refers to the past in the past.
I had found the book before mother called me to eat dinner.
The train left at 9am.We arrived at 9.15am.When we arrived,the train had left.
I had already watched the movie when mom told me to watch it.
Past perfect continuous tense ------ had been + verb+ing:
Tense that refers to action that happened in the past and continued to a certain point in the past.
Steven had been working when the phone interrupted him.
My mom had been washing the clothes when my dad called her into his office.
过去进行时表示在过去某一时刻或某一段时间内进行或发生的动作。其形式为was /were + V-ing。 去完成时①表示发生在过去的动作对现在造成的某种影响或结果 ②过去某动作一直持续到现在将来可能还要延续下去。句中的动作发生在过去之前（过去的过去），即过去完成时动作发生在过去的过去。其形式为had+过去分词满意的话记得好评哦...
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过去进行时表示在过去某一时刻或某一段时间内进行或发生的动作。其形式为was /were + V-ing。 去完成时①表示发生在过去的动作对现在造成的某种影响或结果 ②过去某动作一直持续到现在将来可能还要延续下去。句中的动作发生在过去之前（过去的过去），即过去完成时动作发生在过去的过去。其形式为had+过去分词
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