familiarizaste

Familiarizaste is the second-person singular preterite (simple past) form of the Spanish verb familiarizar, used with the subject tú. It belongs to the indicative mood in the active voice and expresses a completed action in the past. In its non-reflexive use, familiarizaste typically means you made someone or something familiar with a subject, procedure, or set of information, as in familiarizaste a los estudiantes con las reglas.

When the action is reflexive, the corresponding form is te familiarizaste, from the verb familiarizarse. This reflexive use means that the subject became familiar with something or grew acquainted with it, rather than making others familiar with it. For example: Tú te familiarizaste con el software ayer (You became familiar with the software yesterday).

Usage notes: as a transitive verb, familiarizar without the reflexive pronoun often takes a direct object or an indirect construction with con or a, such as familiarizaste a los alumnos con las normas (you familiarized the students with the rules). The choice between transitive and reflexive forms depends on whether the emphasis is on imparting familiarity to others or on the subject’s own process of becoming familiar.

Etymology: familiarizar derives from familiar, related to familiarity or family-related notions, with the Spanish suffix -izar indicating a causative or transformative action.

See also: familiarizar, familiarizarse, conjugation of Spanish verbs in the preterite.