●关于I DONT HAVE ENOUGH MONEY◆I DON’T HAVE ENOUGH MONEY是个否定句,加了DON’T.那COULD YOU PLEASE NOT DROP YOUR PENS?也否定.为什么加了NOT?

分类: 作业答案 • 2021-12-19 11:51:26

问题描述：

●关于I DONT HAVE ENOUGH MONEY◆
I DON’T HAVE ENOUGH MONEY是个否定句,加了DON’T.那COULD YOU PLEASE NOT DROP YOUR PENS?也否定.为什么加了NOT?

答

因为have是实意动词,要加do和not,而could（是can的过去式）是情态动词,只能家not.do只能跟实意动词