Give me sentences on past pefect tense

Sure! Here are some sentences in the past perfect tense:

1. I had already finished my homework before my friends came over.
2. She had traveled to Paris before she met her husband.
3. They had eaten dinner before the movie started.
4. He had studied for the exam, so he felt confident.
5. The team had won the championship before the coach retired.
6. We had already booked our flights before the travel restrictions were announced.
7. The company had already made a profit before the economic downturn.
8. By the time I arrived, they had already left the party.
9. The sun had set by the time we reached the beach.
10. The train had departed when I reached the station.

I hope these examples help you understand the past perfect tense!