гостима

In a sentence

• Послужили смо ручак нашим гостима.

  We served lunch to our guests.

  The word 'гостима' is in the dative plural form, used here to indicate the indirect object of the verb.

• Пажљиво смо се обраћали гостима.

  We addressed the guests carefully.

  Here, 'гостима' is again in the dative plural, expressing to whom the action of addressing is directed.

• Припремили смо смештај за гостима.

  We prepared accommodation for the guests.

  In this sentence, although intended to use 'гостима' in the dative, it is incorrectly used with the preposition 'за'; the correct form would be 'за госте' instead, demonstrating a common learner mistake.