初中英语时态知识点:过去进行的结构

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初中英语时态知识点:过去进行的结构

  过去进行时的结构及句型变化

  过去进行时由was / were + 现在分词构成。如:

  I was doing my lessons then. 那时,我在做功课。

  We were cleaning the house. 我们在打扫房子。

  过去将来时态的肯定句、否定句和疑问句形式:

  肯定句例句:I was walking down the street when a UFO landed.

  否定句例句:I wasnt walking down the street when a UFO landed.

  一般疑问句例句:Were you walking down the street when a UFO landed?

  特殊疑问句例句:What were you doing when a UFO landed?