you had better drive carefully .the roads are wet

题目

you had better drive carefully .the roads are wet
为嘛不能用would better
would better 咋不行啊

答案

因为had better+动词原形
表示你最好...
习惯搭配,这里这个句子的意思是你最好小心开车,路面是湿滑的
如果是would情态动词的话,后面是要跟上动词的原形的,better并不是动词