could you please ______ watch TV now?为什么填not to 不填don’t?

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could you please ______ watch TV now?为什么填not to 不填don’t?

这句话的肯定形式就是you could watch TV now,所以否定就是 You couldn't watch tv now,就是加了个not,could提前提问时,就变成了not to

口语表达习惯,语法上都是对的

could you please not to是固定搭配

not to

因为做系动词呀