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    • i have already had it 和 it hasn't come into the station yet 中后面一句的come为什么不是came呢

    因为前面一句的都是用的had 而没有用have 为什么后面一句come要用原型呢

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    推荐答案   2012-05-02
    这两个都是完成时态,所以第一个句子中,第二个have变成了had
    第二句中come并不是原形,而是come的过去分词,其过去分词和原形一样
    温馨提示：答案为网友推荐，仅供参考
    其他回答
    第1个回答  2012-05-02
    这里的come不是动词原形，是过去分词形式
    come是ABA型的，即：come-came-come

    希望可以帮到你哦！
    第2个回答  2012-05-02
    have already had 和hasn't come 都是完成时态，had和come在这里是过去分词，这是完成时态的基本构成（has/have+过去分词），先理解好语法概念。Good luck for you。
    第3个回答  2012-05-02
    前面的had是have的过去分词
    后面的come是come的过去分词

    因为句子用的是现在完成时（结构have/has+过去分词）
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