had better not to do sth.还是别的结构?had better后面的动词怎么否定?

had better not do sth 最好别做某事
had better为情态动词，后接动词原形，其否定形式是在had better后直接加not.
例：You 'd better not eat too much meat.
祝你进步！

had better not do something

had better ( not ) do sth
去掉to

had better not + 动词原型 +sth.