Estarán

Estarán is the third-person plural form of the Spanish verb estar in the simple future indicative. It corresponds to "they will be" and, when used with ustedes, to "you all will be." The form is widely used to express future states, locations, or ongoing actions that will occur after a point in time.

Conjugation: In the future indicative, estar takes the standard endings -é, -ás, -á, -emos, -éis, -án added to the infinitive "estar": estaré, estarás, estará, estaremos, estaréis, estarán. The form "estarán" is specifically for ellos, ellas, or ustedes.

Usage: Estar expresses temporary states or locations, unlike ser, which covers inherent or defining characteristics. In the future, "estarán" can indicate a future state or presence, or it can express supposition about a present situation (for example, probability about what someone is doing now). It also forms the future progressive when followed by a gerund (estarán estudiando = they will be studying).

Examples: Los invitados estarán aquí a las ocho. Ellos estarán cansados después del viaje. Mañana estarán estudiando para el examen. In this sense, "estarán" functions as a marker of future perspective in both simple and progressive constructions.