2019年8月11日 · 在陈述句中，如出现包含有do的动词短语，主语是单三式人称时do 要变为does.如果主语不是单三人称就不用does，要用do .如：Does she go to …
Here’s how do should be used as an auxiliary verb: 1. Negative Sentences. Following the same subject–verb pairings introduced above, we combine the auxiliaries do, does, and did with the adverb not to create negative sentences: We do not do our homework every night. She did not do her homework last night.
Understanding when to use “do” and “does” is key for speaking and writing English correctly. Use “do” with the pronouns I, you, we, and they. For example, “I do like pizza” or “They do not want to go.” On the other hand, use “does” with the third person singular pronouns: he, she, and it.
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