Hace referencia a una accion pasada que fue interrumpida por otra accion pasada.

Ejemplo:

I had been studying for one hour when my mother turned off the light.

AFIRMATIVA: Sujeto +had been +verbo con ing + complemento + when + oracion en pasado simple.

Jose had been reading at the park when the rain fell.NEGATIVA:Sujeto +had not been +verbo con ing + complemento + when + oracion en pasado simple.

Jose had not been reading at the park when the rain fell.

INTERROGATIVA:Had + sujeto +been +verbo con ing + complemento + when + oracion en pasado simple.

Had Jose been reading at the park when the rain fell?

Respuestas cortas (Short Answers): las preguntas pueden contestarse con yes/no en respuestas cortas.Para las respuestas cortas negativas HAVE NOT se acorta normalmente a HADN‘T: Yes, he had. / No, he hadn‘t. Yes, they had. / No, they hadn‘t. Para respuestas de información, utiliza las wh questions: when, what, who, where, how:

Ejemplo: P. What time Had Jose been reading at the park when the rain fell?

R. He had been reading last week.

By MARCELINA LOPEZ SANTOS