This document discusses question tags, including their definition, formula, rules, examples, and exceptions. Question tags are short questions added to the end of statements. They are used to check information, seek agreement, or request something. The formula depends on if it is adding a tag to a statement or removing the tag. There are also specific rules for tags with pronouns, verbs, auxiliaries, imperatives, and exceptions for sentences with words like never or everybody. The document provides sample questions and answers to demonstrate question tags.