iniciasteis

"Iniciasteis" is the second-person plural preterite indicative form of the Spanish verb "iniciar," which means "to begin" or "to start." This verb is part of the first conjugation in Spanish, and its preterite form is used to describe actions that were completed in the past. The preterite indicative is one of the four main tenses in Spanish, and it is used to talk about completed actions in the past.

The conjugation of "iniciar" in the preterite indicative for the second-person plural is as follows:

- Yo inicié (I began)

- Tú iniciaste (you began)

- Él/Ella/Usted inició (he/she/you began)

- Nosotros/Nosotras iniciamos (we began)

- Vosotros/Vosotras iniciasteis (you all began)

- Ellos/Ellas/Ustedes iniciaron (they began)

The form "iniciasteis" is used when referring to a group of people in the past tense, indicating that the action of beginning or starting was completed by that group. This tense is essential for narrating past events and actions in a clear and precise manner.