This document reviews the uses of the verb "tener" in Spanish. It begins by presenting the conjugations of "tener" meaning "to have" in its various forms. It then explains that "tener" is commonly used to express age and obligation. Additionally, "tener" can be translated as a form of "to be" in certain expressions, such as "tener hambre" meaning "to be hungry". Fourteen expressions that use "tener" instead of "ser" or "estar" are listed and translated to English.