you'd better do sth.

Question

you'd better do sth.那个'd为什么不是would

Answer 1

这里had better的had 是情态动词的用法，没有人称变化，没有时态。

Answer 2

had better do
基本翻译
最好做某事

固定词组

Answer 3

had better do sth是固定用法，译为 最好做某事。。。

Answer 4

是的、、那个d 应该是would