1. She *had been studying* for three hours before the exam started. (Vihje: Kasutatakse tegevuse kestvuse väljendamiseks minevikus enne teist minevikuhetke.)
2. They *had been working* on the project all day when the power went out. (Vihje: “Had been” + tegevuse kestvus minevikus.)
3. I *had been waiting* at the bus stop for 20 minutes before the bus arrived. (Vihje: Minevikus kestnud tegevus, mis lõppes enne teist minevikuhetke.)
4. We *had been living* in that house for five years before we moved. (Vihje: Rõhutab kestvust minevikus enne teist sündmust.)
5. He *had been playing* football since morning when it started raining. (Vihje: “Had been” + tegevuse kestvus minevikus.)
6. You *had been talking* for hours before the meeting ended. (Vihje: Kestv tegevus, mis toimus enne teist minevikusündmust.)
7. The children *had been sleeping* when their parents came home. (Vihje: Minevikus kestnud tegevus enne teist hetke.)
8. She *had been cooking* dinner for an hour when the guests arrived. (Vihje: Kestv tegevus minevikus enne teist sündmust.)
9. We *had been driving* all night before we reached the hotel. (Vihje: Rõhutab tegevuse kestust minevikus enne teist hetke.)
10. He *had been reading* the book for weeks before he finished it. (Vihje: “Had been” + tegevuse kestvus enne teist minevikusündmust.)

1. I *had been practicing* piano every day before the concert. (Vihje: Minevikus kestnud tegevus, mis toimus enne teist minevikuhetke.)
2. They *had been waiting* for the train for an hour when it finally arrived. (Vihje: Rõhutab tegevuse kestvust enne mingit minevikusündmust.)
3. She *had been working* there for years before she got promoted. (Vihje: “Had been” + tegevuse kestvus minevikus enne teist hetke.)
4. We *had been discussing* the problem when the phone rang. (Vihje: Kestv tegevus enne teist minevikusündmust.)
5. He *had been jogging* every morning before his injury. (Vihje: Minevikus kestnud tegevus enne teist sündmust.)
6. You *had been studying* English for months before you traveled abroad. (Vihje: Rõhutab kestvust enne teist minevikuhetke.)
7. The team *had been training* hard before the championship. (Vihje: “Had been” + tegevuse kestvus minevikus enne teist sündmust.)
8. She *had been cleaning* the house all afternoon before the guests came. (Vihje: Minevikus kestnud tegevus enne teist hetke.)
9. We *had been planning* the trip for weeks before we bought the tickets. (Vihje: Rõhutab tegevuse kestvust enne teist minevikusündmust.)
10. He *had been feeling* tired because he had been working too much. (Vihje: Minevikus kestnud tegevus, mis põhjustas teise sündmuse.)