- Happy Belated Birthday!
- How do you expect me to remember your birthday, when you never look any older?
- I hope your birthday was all that you hoped for.
- Wishing you a belated birthday.
- I am sorry I missed your birthday, you have had so many I lost track.
- I hope your birthday was as special as you are.
- Happy Belated Early Birthday!
- Sorry I forgot the most important day of the year… your Birthday!
- Sorry I forgot your birthday. Can you reschedule it for sometime next week?
- I hope all your birthday wishes came true.
- I’m so lucky to have such a great friend like you… who’d forgive me if I forgot his(/her) birthday. Happy Belated Birthday!
- Best wishes for your birthday afterwards.
so nice