had better是什么时态

He thought he had better track this wolf and kill it

他认为最好跟踪这只狼，杀了它。

I wish I had better news for you

我多希望能带给你好消息。

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。

The Republicans had better get used to the fact that in all probability, they are going to lose

共和党人最好习惯他们很有可能失败的'事实。

The Roadrunner had better power, better tyres, and better brakes.

“路行者”汽车的性能、轮胎和刹车都更好。