Here are the sentences with the verbs in the correct form based on the structure of "wish" (using past tense forms for unreal wishes):
1. Do you wish you received more letters from your friends?
2. Does he wish he had traveled more when he was younger?
3. Do they wish they had bought a bigger house now?
4. Does she wish she had met her favorite celebrity?
5. Do you wish you had studied harder for the exam?
6. Do we wish we lived in a different city?
7. Does he wish he played a musical instrument?
8. Do they wish they had visited more countries during their vacation?
9. Does she wish she had learned another language?
10. Do you wish you had a different job?
11. Do we wish we had taken more photos during our trip?
12. Does he wish he had read more books when he was younger?
13. Do they wish they had tried different cuisines while traveling?
14. Does she wish she had spent more time with her grandparents?
15. Do you wish you had attended a different university?
16. Do we wish we had watched the sunrise from the mountaintop?
17. Does he wish he had won the lottery?
18. Do they wish they had started their own business?
19. Does she wish she had visited historical landmarks in Europe?
20. Do you wish you played a sport professionally?
In these sentences, the verb following "wish" is in the past tense, which is a typical structure for expressing unreal or hypothetical wishes about the past, present, or future.