第几怎们说

times
how many times have you been to beijing.

How many times you have been to Beijing？
不能用come

可以转移一下，how many times you have come to Beijing?

第几和第几次不太一样哦 第几 可以说做Which Whick one 是哪一个 第几个 第几次 可以说Which is inferior 毕竟中文和英文之间有所不同的,也有其他的说法,不列举了.

How many times have you went to beijing?

楼主是山西人么