英语里什么时候用助动词什么时候用be动词？能举几个例子吗？

Question

如题所述

Answer 1

be动词后接形容词 但助动词不能 比如 I am happy 。
助动词后可以加动词的原型 Do you go to school today? 但是be动词后很少加动词的.原型 因为be本身就是动词 一个句子里面不能出现两个动词

Answer 2

1、be动词的用法。
be am / is are 现在时
was were 过去时
单数 复数
英语中，be动词选用单数还是复数，要由主语来定，主语是单数，就用单数，反之用复数。
◆ 句中含有be动词时：
肯定句： 主语＋be ＋ 其他
否定句： 主语＋ be ＋ not ＋ 其他
一般疑问句： Be ＋主语＋其他 ＋？
特殊疑问句： 疑问词（what / who / when / where） ＋ be ＋主语 ＋ 其他 ＋？
I am a teacher. You are right.
She is 16 years old. My father is at home.
The students are playing games. My teacher was ill yesterday.
There is a picture on the wall.
There are two books on the table.
例子：Do you watch TV every night?
Yes, we do. / No, we don’t

例子：When did he / you get up every morning last year?