write an application to the principal for not attending parents meeting.
This is the apology letter that you can send to your Principal. You can make this as your guide in drafting your own letter. Feel free to edit it with the correct details and the correct reasons.
Dear Mr. Smith,
I, Arbie Bee, a third-year student of AMF University, would like to apologize because my parents cannot attend the Parent-Teacher meeting on August 26, 2013. This is due to the following reasons: My father is the Manager of XYZ Company and he will not be able to take a leave especially during Mondays. On the other hand, my mother takes good care of my newborn sibling.
Hoping for your kind consideration.
If you have questions, you may call my parents at 639-11-11.
Respectfully Yours, Arbie Bee.