1. I understand you but I don’t agree
2. I am not sure. I haven’t thought it through yet
3. You were right and I was wrong
4. I made a mistake
5. I am sorry
6. I thought so at the time but have now changed my mind
7. I honestly don’t know
8. Perhaps we should park the debate for now and revisit it at a future date.
9. Thanks for conforming that I was right. I don’t know it all. I get many things wrong.
10. Good point but here is another point of view...