bachmutem

In a sentence

• Podróżowaliśmy przez Bachmutem, aby zobaczyć jego zabytki.

  We traveled through Bachmutem to see its monuments.

  Here, 'Bachmutem' is used as a proper noun indicating the place name 'Bachmut', in instrumental case form, following the preposition 'przez' to describe the action of traveling through this place.

• Rozmawiałem z mieszkańcem miasta Bachmutem o jego historii.

  I spoke to a resident of the city of Bachmut about its history.

  In this sentence, 'Bachmutem' is used in instrumental case to complement its relationship to 'miasta', describing its name in the context of possession or locality.

• Mapka przedstawia drogę do Bachmutem, najważniejszego miasta w regionie.

  The map shows the road to Bachmutem, the most important city in the region.

  Here, 'Bachmutem' is part of the description showing location and importance, instrumental case despite 'do' which normally requires genitive, usage suggesting stylized or regional speech forms.