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Both "viven" and "vive" are forms of "vivir", which is often translated as "to live". Learn more about "vivir" below.
vivir()
An intransitive verb is one that does not require a direct object (e.g., The man sneezed.).
A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
a. to live through
Nuestro país vivió momentos trágicos en el pasado.Our country has lived through tragedy in the past.
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).