I don't mind attending the meeting. (attended)
The closest thing I can think of is
I wouldn't mind if I attended the meeting.
However, I don't think it is 100% the same meaning because here it sounds as if the speaker thinks there is some chance that he/she will not attend the meeting.

جميييييييييييييل جدا يا مستر

1- I don't mind the meeting be attended. (Or) The meeting is attended, I don't mind.

كانت الجملة فى إمتحان الأزهر السنة الماضية وكان الحل فى نموذج الإجابة كالاتى
I don't mind the meeting being attended