你来过中国吗Have you (ever) been to China请问这是什么时态 为什么用have提问

你来过中国吗Have you (ever) been to China请问这是什么时态 为什么用have提问 have you ever been to an amusement?是什么时态 Have you ever been to shanghai?这个句子是什么时态 Have you been to China?和 Have you ever been to China?有什么区别吗? have you ever been to China和have you ever been China有什么区别? Have you ever been to a museum?(翻译+时态） 英语翻译Have you ever been to Singapore?你曾经去过新加坡吗?Have you ever been,you,china,to,have,ever 连词成句 have you ever been outside of china? Have you been to China?和Have you ever been to China 都是一样的意思吧 Have you ever been all over china?其中been 和all 之间为什么不加个to,不是有 'You have been busy 这是什么时态?