Past Perfect Continuous Tense
Here's an example:
"Before she retired, she had been working at the company for 20 years."
In this sentence, the past perfect continuous tense "had been working" is used to describe the ongoing or continuous action of working that took place for 20 years prior to her retirement, which is the second past action that took place.
|Subject + (had been) + present participle (verb + ing form)|
I/You/We/They + had been + working
He/She + had been + working
1) I had been studying for three hours when my friend called.
2) She had been working at the company for five years before she got promoted.
3) They had been living in the old house for ten years before they moved out.
1) I had been watching TV when the power went out.
2) She had been driving when she got lost.
3) They had been playing tennis when it started to rain.
|I had been working||I hadn't been working||Had I been working?|
|We had been working||We hadn't been working||Had we been working?|
|You had been working||You hadn't been working||Had you been working?|
|He had been working||He hadn't been working||Had he been working?|
|She had been working||She hadn't been working||Had she been working?|
|They had been working||They hadn't been working||Had they been working?|