éstas

In a sentence

• Éstas son las llaves que buscabas.

  These are the keys you were looking for.

  In this sentence, 'éstas' is used as a demonstrative pronoun to refer to a specific group of items (the 'keys') that are mentioned or identified in the conversation, emphasizing proximity.

• ¿Quieres llevar éstas o prefieres otras?

  Do you want to take these or do you prefer others?

  Here, 'éstas' functions as a demonstrative pronoun, asking about a choice between specific items that are described as 'these' with the implication of closeness or relevance.

• Me quedo con éstas porque son más bonitas.

  I'll keep these because they are prettier.

  In this context, 'éstas' refers to a specific subset of items (likely previously mentioned), distinguishing them from others based on the preference or judgment of the speaker.