The verb “estar” is one of the essential verbs in the Spanish language, alongside “ser,” both of which translate to “to be” in English. However, “estar” is used to describe temporary states, conditions, or locations. It helps in indicating how someone feels, where someone or something is located, or how something temporarily appears. Understanding the use of “estar” is crucial for expressing emotions, describing temporary situations, or giving directions in Spanish. The verb is highly irregular, meaning it does not follow the standard conjugation patterns and must be memorized in its various forms.