**Damn** is a strong swear word in English and its usage can be considered inappropriate in formal or polite settings. Here are some examples of its use:
1. I tripped over a rock and **damn**, I sprained my ankle.
2. I can't believe he did that! He's such a **damn** liar.
3. **Damn** it, I forgot to bring my umbrella and now it's raining hard.
4. She's always complaining about everything. She's a **damn** complainer.
5. **Damn**, I lost my keys again! I need to find them before I leave.
6. I tried to fix the problem myself but I messed it up even worse. **Damn** me for being so stupid.
7. **Damn** this traffic! It's taking forever to get to the airport.
8. I'm so tired of this project. It's been a **damn** headache.
9. **Damn** it, I left my phone at home. I need to call my boss.
10. He promised to help me but in the end, he didn't. He's a **damn** unreliable person.