This document discusses modal nouns and modal verbs. It provides examples of sentences with blanks to be filled in with modal verbs, such as "could", "should", and "will". It also gives examples of sentences containing modal nouns, like "possibility", "likelihood", and "willingness". Students are tasked with identifying the modal nouns in sentences and answering questions in writing. The document aims to teach the uses and identification of modal nouns and verbs in English sentences.