现在完成时

现在完成时的构成

  • has + 过去分词
  • have + 过去分词
    eg:I have'n't seen you for a long time.

现在完成时的用法

  • 表示迄今为止完成的事情
    eg:He has already come.
  • 表示过去的事情对现在的影响
    eg:I have broken up with my boyfriend.
  • 强调‘已经’完成的事情
    eg:I have already been to Hangzhou.
    eg:Have you been to Hangzhou yet?
  • sincefor
    since + 时间点
    eg:I have been in Shanghai sice 2015.
    for + 时间段
    eg:I have been in Shanghai for 4 years.
  • 主语 + be 动词 + the most + 形容词 + 名称 + 现在完成时 表示迄今为止最...的
    eg:It is the most amazing moive I've ever seen!
    eg:Canon is the most beautiful music I have ever heard.

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