Had better/Would rather es un post de este mismo blog en donde vimos cómo se utilizaba had better en contraposición a would rather.
Ahora vamos a ampliar nuestros conocimientos de had better. Se utiliza para expresar "más vale que..." siendo un aviso muy fuerte que roza el cabreo. La estructura es: subject + had better + verb.
You had better stop seeing that girl.
She had better have a good excuse!
They had better let me know if they change their mind!
You had better not say that again!
She had better not be late!
They had better not let us down!
You had better not lose your temper!
También se utiliza para anunciar nuestra inminente marcha. En este contexto el tono de voz es más suave ya que se trata de una fórmula más educada.
Well, I had better be off.
Well, I had better be going.
We had better be leaving.
I had better be making a move.
We had better be heading off.
Cuando hablamos el I had se contrae como I'd.
I'd better be moving.
She'd better remember what she has to say.
They'd better fasten their seatbelts.
You'd better not do that again.
