The document discusses the future tense in Spanish. It notes that the future tense corresponds best to the English phrase "I will/shall do something" and is used to refer to actions that have not yet occurred. It provides examples of how to express an immediate future using the present tense instead. Finally, it explains that the future tense is formed by adding endings derived from the present tense of haber to the verb stem, and lists some common irregular verbs in the future tense.