Could I know when will your residence permit expire?May I know the expiry date of your resident permit?楼上的,Would you mind telling when does your residence permit expire?你的does是多余的吧.应该是 Would you mind telling me when your residence permit expire?或者Would your minde telling me the the expiry date of your resident permit?楼主你自己斟酌吧?意思已经很好了,不用担心对方觉得你粗鲁.
What is the deadline of your residence permit?What is the expiry date of your residence permit?When does/will your residence permit expire? 等等表达都是可以的。语气委婉一些?请问您给出的中文原文的语气委婉吗?英文翻译出来的语气和中文差不多的,都是很正规的说法,没有什么感情色彩。这句话我认为中文的表达也不会做到很“委婉”,就是一句很普通的问句。本人解释及翻译仅供参考。