Pasado perfecto continuo
A) Escribe los verbos marcados en verde en el past perfect continuous en afirmativo o negativo, según corresponda en las siguientes oraciones.
He'd (had) been studying Chinese for two years before they sent him to China.
What had you been doing before I arrived?
It'd not (had not / hadn't) been raining hard before I arrived.
Had the patient not been feeling better?
Had your students been spoking in English at the meeting?
I'd (had) been driving for two hours when I got to the village.
He admitted he had not been sleeping for several days.
Lucy had not (hadn't) been watching TV since 8 o'clock.
She'd (had) been reading a newspaper.
He'd not (had not/hadn't) been working there for ten years before he retired.