这几个英语句子语法有无错误?

问题描述:

这几个英语句子语法有无错误?
You be keep still in our class.
He switch on the box.
He decide one to go there.
Money of mine is no more growth.

You be keep still in our class.
改:You are keep still in our class.
He switch on the box.
改:He switchs on the box.
He decide one to go there.
改:He decides one to go there.
Money of mine is no more growth.