The document discusses the use of tense, voice, and person in academic writing. It explains that the present simple tense, present perfect tense, and past simple tense account for approximately 80% of verb use in academic texts. The present simple is used to describe established knowledge, while the past simple is used to report past research and data. The present perfect links past research to the present study. The passive voice is commonly used to emphasize the subject of the action rather than the actor. However, the active voice is preferred for clarity. First and second person pronouns like "I" and "you" are generally avoided, while third person is preferred in formal academic writing.