英语知识：初中英语基本时态讲解

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初中英语基本时态包括以下几种：

1.现在时：表示现在正在发生的动作或状态，常见的结构是主语+动词原形（第三人称单数加-s），如：I read books every day. He reads books every day.

2.过去时：表示过去已经发生的动作或状态，常见的结构是主语+动词过去式，如：I read a book yesterday. He read a book yesterday.

3.将来时：表示将来要发生的动作或状态，常见的结构是主语+will/shall+动词原形，如：I will read a book tomorrow. He will read a book tomorrow.

4.现在进行时：表示现在正在进行的动作，常见的结构是主语+be动词+动词-ing，如：I am reading a book now. He is reading a book now.

5.过去进行时：表示过去正在进行的动作，常见的结构是主语+was/were+动词-ing，如：I was reading a book at 8 o'clock yesterday evening. He was reading a book at 8 o'clock yesterday evening.

6.现在完成时：表示过去发生的动作对现在仍有影响或结果，常见的结构是主语+have/has+动词过去分词，如：I have read this book before. He has read this book before.

7.过去完成时：表示过去某个时间点之前已经完成的动作，常见的结构是主语+had+动词过去分词，如：I had read this book before I saw the movie. He had read this book before he saw the movie.

以上是初中英语基本时态的讲解。