表达疑问英语

Sure, here's a list of English phrases to express doubts or questions:
1. I'm not sure about that. 2. That doesn't seem right to me. 3. I have my doubts about that. 4. Can you clarify that for me? 5. I'm not convinced. 6. Is that really true? 7. I question that statement. 8. I'm not convinced by the evidence. 9. How do you know that? 10. I'm not sure that's accurate. 11. That doesn't add up. 12. I'm having a hard time believing that. 13. There's something that makes me skeptical. 14. I'm curious about that. 15. I'm not convinced that's the case.