the dog doesn't have wings为什么用have
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发布时间：2024-10-19 08:52
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时间：2024-12-03 02:55
主语+实义动词的否定：
含有实义动词的句子，变否定句分两种。
1、如果主语是第三人称单数时，要在实义动词前加doesn't,后面的动词用原形。
【例】He eats an apple. 否定句 He doesn't eat an apple.
Jim does his homework. 否定句 Jim doesn't do his homework.
Marry goes to school. 否定句Marry doesn't go to school.
2、 如果主语不是第三人称单数时，只需在实义动词前加don't.
【例】I teach English. 否定句 I don't teach English.
