He aqui un ejemplo de una carta formal en ingles: una queja.

22 Brown Street
N22 5ZT

23rd May 2005

The Editor
The Daily News
11 Upton Street
N45 6TY

Dear Sir/Madam

I am writing to complain about a news article printed in yesterday´s newspaper.

I believe that your article did not represent both sides of the argument. I have been reading your newspaper for many years and one of the things that I value is your reporting which is normally impartial. However, on this occasion I believe that the facts were not clearly stated.

I would be very interested in knowing your comments regarding the above complaint.

I look forward to hearing from you.

Yours faithfully

Jane Smith