When a person is dying, they may have a variety of regrets about their life. Based on research and interviews with terminally ill patients, some common regrets include:

1. Not living their life true to themselves: Many people wish they had the courage to pursue their dreams and aspirations rather than conforming to societal expectations or doing what was expected of them by others.

2. Not spending enough time with loved ones: Some people regret not spending more quality time with their family and friends.

3. Not expressing their feelings: Many people wish they had expressed their emotions and feelings more openly, and had been more honest about their thoughts and opinions.

4. Working too hard or prioritizing career success over other important aspects of life: Some people regret focusing too much on their career at the expense of other things, such as relationships or personal hobbies and interests.

5. Not traveling more: Some people regret not having traveled more and experienced different cultures and places.

It's important to note that everyone's regrets are unique and personal, and not everyone will have the same ones.