Acompañasteis

Acompañasteis is the second-person plural preterite indicative form of the Spanish verb acompañar. The verb acompañar generally translates to "to accompany," "to escort," or "to keep someone company." Therefore, acompañasteis specifically refers to an action performed by "you all" (vosotros) in the past, indicating that "you all" accompanied, escorted, or kept someone company.

This verb conjugation is primarily used in Spain, where the pronoun vosotros is the standard second-person plural. In most of Latin America, the pronoun ustedes is used instead for both formal and informal second-person plural address, and the corresponding verb form would be acompañaron. Therefore, encountering the form acompañasteis strongly suggests the speaker or writer is addressing a group of people in Spain.

For example, a sentence like "Acompañasteis a vuestros amigos a la fiesta" would mean "You all accompanied your friends to the party." The preterite tense indicates a completed action in the past.