formal: no contractions, formal set phrases, formal greetings in letters, inversions, complete sentences, formal vocab, usually no phrasal verbs, indirect questions, more use of the passive voice, formal connecting words and phrases, complex sentence structure, punctuation using semicolons. informal: contractions, informal set phrases, informal greetings in letters, incomplete sentences, informal vocab, incluiding phrasal verbs, direct questions, use of the active voice, informal connecting words and phrases, simpler sentence structure, punctuation using exclamation marks. Interview: a meeting between a representative of the press and someone from whom he seeks to obtain statements for publication. structure: similar to a dialogue, participate take turns, have a clear role, interviewer asks questions and interviewee answers. introduction, body, closure. language: brief and short, formal grammar, objective style.