Be verbs such as am, is, are are used to express a state of being. Am is used for the pronoun I, is is used for singular nouns and pronouns, and are is used for plural nouns and pronouns. The most common uses of be verbs are to talk about names, age, feelings, place and professions. Examples are provided to demonstrate the correct usage of am, is, and are based on whether the subject is singular or plural.