| 1 | The killer showed no remorse for his cruel actions. | |
| 2 | They regret not starting to plan their finances earlier. | |
| 3 | I regret not studying Chinese properly back then. | |
| 4 | Learn to cherish the people around you, don't wait until you lose them to regret. | |
| 5 | She regrets not pursuing her dreams more boldly when she was young. |