题目内容：

英语什么时候加be动词?
you come back 还是you are come back?Do you come back?还是Are you come back?

优质解答

You come back →问句 Do you come back?
你回来 → 你回来吗? (一般不会用到这句,只会说"你会回来吗?" Will you come back?)
You are coming back → Are you coming back?
你正在回来/你会回来 →你正回来吗?/ 你会回来吗?注意这里是coming 不是 come
简单来说, be动词 + -ing型式 = 进行式
其他都不用be动词.
do you come back 怕写成are you come back 的话,记住：
You come back = You do come back (一样的意思,加重语气)
→ Do you come back?