had better后加什么动词什么形式

had better 加动词原形，had better do sth 最好做某事。

例句

Its half past two. I think we had better go home

现在两点半了。我想我们最好还是回家吧。

I had better give a few particulars about myself.

我最好还是详细讲一下我自己的情况。

He said, rather hurtfully, that he had better things to do than come and see me.

他相当刻薄地说，来看我还不如去干别的事。

I worried for ages and decided that I had better break it to her.

我烦恼了很长时间，后来决定还是把这事告诉她。