Sujeto + “had” + participio pasado…


Ejemplos:

   I had [I’d] visited the Louvre before, so I knew where the Mona Lisa was.

They had [They’d] studied English before they went to London.  

Henry changed careers because he had [he’d] worked as an accountant for many years and was bored.

How did you know where the Mona Lisa was? Had you visited the Louvre before?
Had they studied English before they went to London?
Had Henry worked as an accountant for long before he changed careers?

Ejemplos:

 I’d read the book before I saw the movie.(Había leído el libro antes de ver la película.)
Donna had just left when you called.(Donna había salido justo cuando llamaste.)
Had you ever flown before the trip to France?(¿Alguna vez habías volado antes del viaje a Francia?)



2. Se usa para acciones que ocurrieron antes de un tiempo específico en el pasado.

Ejemplos:

 I had already woken up when the alarm clock rang at 7am.(Ya me había despertado cuando sonó el despertador a las 7.)
He hadn’t been to France before the trip in 2008.(No había estado en Francia antes del viaje del 2008.)

Ejemplos:

 She had only owned one car before she bought her new BMW.(Solo había tenido un coche antes de que comprara su nuevo BMW.)
I’d been depressed for a long time before I changed jobs.(Había estado deprimido durante mucho tiempo antes de que cambiara de trabajo.)