Peter did lots of work变否定句,为什么?

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Peter did not do lots of work,因为英语句子中只能并如亩出现一个时态，否定用了橡肢过去式，动词绝森就要用原形了

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Peter didn't do lots of work.
一般尘脊过去式的句子变否定句,要在纳搜实义动词前加didn't,然后再把过去式改派茄渗为原形.

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Peter didn't do lots of work.

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