Formal Letter

Dear doctor Sainz,
                           I am writing this letter because I want some medecine for a cold.
    I want an Ibupirac because I am feeling very bad this days. I have been vomiting for three days. I have had a headache for four days and my stomache was going to explode. I need to get a vaccin for cancer. These days are the worst of my life. I am feeling very bad these days so I went to a doctor and he said that I had nothing. I will not go to that doctor anymore. My father has cancer so he wants me to get a vaccin because he want that his son does not have cancer like him and suffer like him
    If you have this medicine and this vaccin please call me to this number  15 50 42 78 89

                                               Yours sincerely

Steve Jackson                          

Informal letter

Dear Mom:
 Hi mom, I´m not happy about writing this letter but I have to tell you my story.
 It begins like this: I was researching in my laboratory one day, when I had an idea. My idea was to create a potion that separates the people into two different parts : the good part and the bad part. When I finished creating the potion I drank it and transformed into an evil person that killed a lot of people.When I realized about that, I stopped drinking the potion, but the transformations didn´t stop so I can´t control it.
 And now I´m here in my room. I send you this letter because I want you to know I am going to commit suicide. I only wanted to tell you bye.
                                                        Bye for ever

Dr Jekill, your dear son