预祝你生日快乐！我实在很想参加，但现还不能确定。

Happy birthday to you! I'd really love to come, but I'm not sure right now.

youdao

预祝你生日快乐！我实在很想参加，但现在还不能确定，我会尽量参加。谢谢你的邀请。

Happy birthday to you! I'd really love to come, but I'm not sure right now. I'll try to make it. Thank you for your invitation.

youdao

预祝你生日快乐！我实在很想参加，但现在还不能确定，我会尽量参加。谢谢你的邀请。

Happy birthday to you! I'd really love to come, but I'm not sure right now. I'll try to make it. Thank you for your invitation.

youdao