Here are some advanced English phrases to express apology:
1. "I offer my sincerest apologies for my mistake."
2. "Please accept my profound regrets for the inconvenience caused."
3. "I am deeply sorry for my actions, and I assure you it won't happen again."
4. "I apologize unreservedly for my error and any distress it may have caused."
5. "My apologies for my thoughtlessness; I should have been more considerate."
6. "I am truly contrite for my mistake and promise to make amends."
7. "Please forgive my transgression; I will strive to do better in the future."
8. "I regret my actions and assure you that I will learn from my mistake."
9. "My sincerest apologies for any offense or harm caused by my words/actions."
10. "I am remorseful for my mistake and commit to being more mindful in the future."
These phrases can be used in various situations, such as:
- Apologizing for a mistake at work
- Expressing regret for a hurtful comment
- Apologizing for a missed deadline
- Showing remorse for a thoughtless action
- Apologizing for a misunderstanding
Using advanced vocabulary and phrases can help convey a more sincere and heartfelt apology, and show that you are genuinely remorseful and committed to making things right.