How do you write an apology letter to someone? - I need to write an apology letter to someone how do i do it?

[Cope or Rope]

I know how to start it off by the Dear, Whoever and how it ends signed whovever but what do i put between the beginning and the end? I forgot to mention but the reason why i need to write this letters it to apologize to my mother for being a loser piece of genetic trash.

 

[Billy Beer]

Dear Bitch,

I would apologise for the pain I caused you during child-birth, but seems as you're a giant cunt you probably felt nothing. Which is how I feel about you.

Regards,

Someone you should have swallowed.