This document discusses the uses of the verb "to be" in English. It is used to express concepts like existence, identity, possession, location, conditions, age, professions, nationalities, and states of being such as being tired, hot, or hungry. Examples are provided for each use case. Exercises at the end reinforce using "to be" correctly in different contexts like identifying objects, fruits, animals, and describing a picture. The conclusion notes that "to be" has two meanings in Spanish - "ser" and "estar" - but only one in English, and lists its conjugations.