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Chinese (Mandarin)Native
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- I hired a native speaker to edit my document. She changed the sentence"All you need to do is to make sure sth" into "All you need to do is make sure sth". In the past, what I learnt on this was, the root form of a verb couldn't be used after the "be" verb.It should be changed to "verb-ing" or "to+verb". Could you give me more explaination on this? Thank you im advance.December 1, 202051
- ABOUT THE SENTENCE: Air is to us what water is to fish. "what" is tested in grammar of the sentence. I don't like some certain explains like A to B what C to D is a fixed structure. So I want to know how to comprehend the sentence structure in native language, and whether the kind of "Air is to us" is a complete sentence. Thank you very much. add: I prefer to learn it more in syntax. For example, when I explain the sentence to others, why is it "what" rather than filling in "is that"?March 21, 202070

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