Gustasteis

Gustasteis is a verb form in the Spanish language. Specifically, it is the second-person plural preterite indicative form of the verb gustar. The verb gustar generally translates to "to like" or "to be pleasing to." The preterite tense is used to describe completed actions in the past. Therefore, gustasteis refers to an action of liking or something being pleasing to a group of people addressed formally or informally depending on regional usage (ustedes or vosotros, respectively) that occurred and was completed in the past.

The structure of gustar is unique in that the grammatical subject is the thing being liked, and the person who likes it is the indirect object. Thus, when translated literally, "a ustedes les gustasteis" or "a vosotros os gustasteis" would mean "you (plural) liked it." This is a past action. For example, "Las canciones te gustaron" means "You liked the songs." Applied to the second-person plural preterite, "Las canciones os gustaron" means "You (plural) liked the songs." The form gustasteis itself would only appear if the subject were plural and the verb were conjugated to agree with it, which is unusual for gustar unless it is used in a more complex sentence structure or in certain idiomatic expressions. More commonly, the conjugation of gustar would be in the third person singular or plural to agree with the thing being liked. For instance, "Los libros te gustaron" uses the third-person plural preterite "gustaron" because the subject is "los libros" (plural). The form "gustasteis" is a direct conjugation to address the people doing the liking in the past.