I'm a staff in school. I make a administrative mistake recently, but my school president
forgive my wrong, so I want to write a letter of thank you to her and promise will not make the mistake again. how to write this letter? Thank You.
Dear ,

I'm writing to thank you for dealing with the events this week so forgivingly. Your kindness in the matter was much appreciated. I regret making the mistake in the first place, but more importantly, I’m going to make sure it never happens again.

Thankfully,

Thanks Orpheus!
Hi Hitch,
I believe you meant to write I'm writing, right? typo??!
Students: Are you brave enough to let our tutors analyse your pronunciation?
Yep, nicely noticed, changed it in the original post. (I also forgot a 'with')