This document discusses reporting verbs used to report direct speech. It explains that some modal verbs like "should", "might", and "mustn't" do not change between direct and reported speech, while others like "can", "have to", and "must" change to "could", "had to", and "had to" respectively. It also outlines four patterns for using reporting verbs like "say", "tell", "decide", and "advise" followed by clauses or infinitives to report what was said.