A be verb is a verb that conveys a state of being, existence, or occurrence. The most common be verbs in English are "am," "is," "are," "was," "were," "been," and "being". The verb "to be" is highly irregular, meaning that it changes almost completely in most of its forms. The forms of "to be" vary according to the tense of the verb (whether its present, past, future, or even in mixed tenses) and the subject. The be verb is used to describe or tell us the condition of people, things, places, and ideas. It is also used as an auxiliary verb to create other tenses or as a linking verb to help describe the subject of a sentence.