do和is的区别是什么【开头提问】

题目

do和is的区别是什么【开头提问】
做练习问问题总是不知道用do还是is,如果有回答我就会,可没有回答该怎么办
例：Does Alice go to school by bus?
Is Alice goes to school by bus?
用哪一个?还是都可以?
= =例子随便打的，不对就说

答案

例：Does Alice go to school by bus? Is Alice goes to school by bus? 用哪一个?还是都可以?第二句是错误的.Do you go to school by bus?用动词时就是do/doesIs Alice going to school by bus?这个be+doing...