1. She *has been studying* for three hours. (Hinweis: Verwendung von „has/have been“ + Verb mit -ing für Handlungen, die gerade noch andauern oder kürzlich aufgehört haben)
2. They *have been working* on the project since Monday.
3. I *have been learning* Vietnamese for six months.
4. He *has been waiting* at the bus stop for 20 minutes.
5. We *have been living* in this city since 2010.
6. You *have been talking* on the phone for an hour.
7. It *has been raining* all morning.
8. She *has been playing* the piano since she was a child.
9. They *have been traveling* around Europe for two weeks.
10. I *have been reading* that book you gave me.

1. He *had been working* at the company for five years before he quit. (Hinweis: „had been“ + Verb mit -ing für Handlungen, die vor einem Zeitpunkt in der Vergangenheit andauerten)
2. They *had been waiting* for an hour when the train arrived.
3. I *had been studying* all night before the exam.
4. She *had been living* in Hanoi before moving to Ho Chi Minh City.
5. We *had been talking* about the problem all day.
6. You *had been playing* football before it started to rain.
7. It *had been snowing* for two days before the sun came out.
8. They *had been traveling* for weeks before they found the hotel.
9. He *had been feeling* sick before he went to the doctor.
10. I *had been reading* the book when the phone rang.