Breakdown of No creo que tu hermano sea callado, pero está distante ahora.
ser
to be
pero
but
el hermano
the brother
no
no, not
Questions & Answers about No creo que tu hermano sea callado, pero está distante ahora.
Why use sea callado here instead of esté callado?
The adjective callado changes meaning depending on the verb. With ser, it describes someone who is generally a quiet, introverted, or reserved person. With estar, it simply means someone is being silent or not talking at this exact moment. The speaker doesn't believe the brother is a quiet person by nature.
How would the meaning change if the sentence said es distante instead of está distante?
Why do we use the subjunctive sea instead of the normal present tense es?
The phrase no creo que (I don't believe that) expresses doubt or a negative belief, which triggers the subjunctive mood in Spanish. If the sentence were positive, like creo que (I believe that), you would use the indicative es.
Could I use the word silencioso instead of callado to mean quiet?
Usually no. While both translate to quiet, callado is used for people who don't speak much. Silencioso is generally used for places, objects, or actions that don't produce physical noise, like a quiet library or a silent car engine.