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用现在进行时态肯定句分别改为否定句和一般疑问句

现在进行时态:BE动词加动词ing 否定:加NOT 疑问句:BE动词提前 例: He is waiting for her. He is not waiting for her. Is he waiting for her?

你好,很高兴在这里回答你的问题: . He is reading a book. Is he reading a book? Yes, he is. No, he isn't.

否定即将am is are变为am not.isn't.aren't疑问句将am is are提前至句首将标点符号变成问号即可

否定句,把动词改为否定。现在进行时把动词改为现在进行时状态即V-ing形式。特殊疑问句,问什么就用上对应的特殊疑问词,后便加一般疑问句。 肯定句

变疑问句,否定句,应该遵循“一观察,二添加,三还原”的原则

I am reading a book. Are you read a book? I am not reading a book.

you are do your homeworking 。

现在进行时:be动词(is,am,are,was,were)+动词的ing形式,be动词的形式由第几人称及时态决定选择哪个; 肯定句:按照简单句的五中句型(主谓,主谓宾,主系表,主谓宾宾补,主谓双宾),主语+动词的各种形式(由主语的第几人称和时态决定)+句...

楼上说的很好,不过I'm walking不是我在吃饭,而是我在散步的意思。

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