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"Convirtió" is a form of "convertir", a transitive verb which is often translated as "to turn into". "Fue" is a form of "ser", a copular verb which is often translated as "to be". Learn more about the difference between "convirtió" and "fue" below.
convertir(
kohm
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behr
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teer
)A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
b. to change into
El trabajo lo había convertido en un hombre aburrido.Work had changed him into a boring man.
a. to convert
Los misioneros convirtieron al catolicismo a muchos nativos en África.The missionaries converted many natives in Africa to Catholicism.
5. (sports)
a. to score (in soccer and basketball)
El jugador convirtió el penal.The player scored the penalty kick.
b. to convert (in American football and rugby)
Convirtió el ensayo y anotó dos puntos más para su equipo.He converted the try and scored two extra points for his team.
convertirse
A pronominal verb always uses a reflexive pronoun. (e.g., Te ves cansado.).
b. to turn into
El pueblecito de pescadores se ha convertido en un lugar turístico.The small fishing village has turned into a tourist resort.
a. to convert to
Me convertí al judaísmo para casarme con mi amada.I converted to Judaism to marry my love.
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).