He aqui un ejemplo de una carta formal en ingles: una queja.
22 Brown Street
23rd May 2005
The Daily News
11 Upton Street
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.