He has lunch with his classmates at school改为否定句

问题描述:

He has lunch with his classmates at school改为否定句
请注明为什么,谢谢

He doesn't have lunch with his classmates at school.为什么?has 是第三人称单数,否定句用助动词does +not ,缩写为doesn't ,然后将动词has 还原成have 。