What is the Uds form of verb dormirse in preterite tense?

The Uds form of the verb "dormirse" in the preterite tense is se durmieron.

Here's a breakdown:

* Dormirse: This verb is reflexive, meaning it uses a reflexive pronoun "se" to indicate that the action is being done to oneself.

* Preterite tense: This tense is used to describe actions that happened in the past and are now finished.

* Uds: This is the informal second person plural pronoun, meaning "you all" or "y'all".

So, se durmieron means "they slept" or "y'all slept".