3 common forms of writing style; formal, semi formal and informal. Formal writing the written medium for o cial reports business letters academic articles academic essays academic or business presentations contracts o cial speeches. Do not use contractions, spell it out can"t = can not. Do not use the words really or very to emphasise meaning it was really very important > it was important (better) Don"t use passive voices passive - the questionnaire was completed by the participants active - the participants completed the questionnaire. Don"t begin sentences with linking words such as and , but , also , so , or a vague pronoun such as this or it e. g. the participants completed a questionnaire > in addition, the participants completed a questionnaire (better) Used when writing an email to a professor or lecturer, someone whom you want to maintain a relatively professional relationship. Use an informative subjective line start with an appropriate salutation e. g dear .