The document provides guidance on maintaining consistent verb tense when writing. It advises that if an event is written about in the past tense, all verbs describing that event should be in the past tense. The same applies for present and future tense. It highlights examples of inconsistent verb tense that can confuse readers and provides corrected versions with consistent tense. Exceptions when switching tense is acceptable, such as when referring to habits, opinions, or using words like "but" or "however", are also discussed.