need to do sth和need do sth区别?
问题描述：
need to do sth和need do sth区别?
到底怎么区分呢?用法我都知道,可还是不太会用.
比如 You ____worry about him.是need还是need to呢?
答
need to do sth时need是实义动词
need do sth时need是情态动词
当实义动词动词用时多用在肯定句中
当情态动词用时多用在否定句和疑问句中
所以此题应填need to