“Could you please tell me your name?"这句话情态动“Could you please tell me your name?"这句话情态动词为什么不用can而用过去式could?

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“Could you please tell me your name?
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“Could you please tell me your name?"这句话情态动“Could you please tell me your name?"这句话情态动词为什么不用can而用过去式could?
“Could you please tell me your name?"这句话情态动
“Could you please tell me your name?"这句话情态动词为什么不用can而用过去式could?

“Could you please tell me your name?"这句话情态动“Could you please tell me your name?"这句话情态动词为什么不用can而用过去式could?
询问一般都用could 而不用can、、、、could更礼貌一些

用can语气更为生硬,表示能不能,could表情态。如果我的答案对您有帮助请点击“好评”,谢谢!