esté

In a sentence

• Espero que esté bien de salud.

  I hope that they are in good health.

  In this sentence, 'esté' is the subjunctive form of the verb 'estar', used here because the sentence expresses a desire or wish regarding someone's health.

• Es importante que el informe esté terminado a tiempo.

  It's important that the report is finished on time.

  Here, 'esté' is in the subjunctive mood, reflecting the necessity for the report to be in a certain state (finished) as part of an expressed importance.

• Dudo que él esté en casa ahora.

  I doubt that he is at home now.

  In this case, 'esté' is used in a situation of doubt, which triggers the subjunctive mood.