Grammar : Past Perfect Continuous
Formation : Subject + had been + present participle.
He had been driving for ten years when he had the accident.
Use: The past perfect continuous describes something that started in the past and continued up to another point in the past before something else started. It is usually interrupted by the next event.
فعل بدأ في الماضي واستمر لفترة حتي بدأ فعل آخر في الماضي
Past perfect continuous negative = Subject + had not been + present participle.
e.g. I had not been living there for very long.
Past perfect continuous question = Had + subject + been + present participle.
e.g. Had you been living there for long?
Past perfect continuous in passive voice = Subject + had been being + past participle of verb.
e.g. Alan had been being watched for a week.
Past perfect continuous negative in passive voice = Subject + had not been being + past participle of verb.
e.g. Alan had not been being watched for long.
Past perfect continuous question in passive voice = Had + subject + been being + past participle of verb +………?
e.g. Had Alan been being watched for long?
