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"Será" is a form of "ser", a copular verb which is often translated as "to be". "Sea" is a form of "sea", a phrase which is often translated as "be". Learn more about the difference between "será" and "sea" below.
ser(
sehr
)A copular verb links the subject of a clause to the predicate (e.g., My brother is tall).
An intransitive verb is one that does not require a direct object (e.g., The man sneezed.).
a. to be made of
El casillero antiguo de mi abuela es de roble.My grandma's antique dresser is made of oak.
a. to root for
Yo soy del mejor equipo del mundo: FC Barcelona.I root for the best team in the world: FC Barcelona.
An impersonal verb is a verb with no apparent subject (e.g., Llueve en España.).
a. to be
Son las siete de la mañana.It is seven in the morning.
Era de noche cuando llegaron.It was night when they arrived.
An auxiliary verb, or helper verb, is a conjugated verb that comes before a main verb and determines the main verb's tense, mood, or aspect (e.g., I have gone.).
a. to be
El edificio fue diseñado por un equipo de arquitectos.The building was built by a team of architects.
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
sea
A phrase is a group of words commonly used together (e.g., once upon a time).
1. (formal) (imperative; second person singular)
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
3. (formal) (subjunctive; second person singular)
A word or phrase used to refer to the second person formal “usted” by their conjugation or implied context (e.g., usted).
a. to be
Es importante que sea amable con sus vecinos.It's important for you to be kind to your neighbors.
a. to be
Ana María le pidió a su hermana que sea su dama de honor en la boda.Ana Maria asked her sister to be her bridesmaid in her wedding.
