chodniku

In a sentence

• Idę po chodniku.

  I am walking on the pavement.

  The word 'chodniku' is used in its locative case form, indicating the location where the action of walking is taking place.

• Nie stój na chodniku, przejdź na trawnik.

  Don't stand on the pavement, move to the lawn.

  Here, 'chodniku' again takes the locative case, specifying the location being referenced where standing is occurring.

• Na chodniku są namalowane pasy.

  There are painted stripes on the pavement.

  In this sentence, 'chodniku' is used to denote the location 'on the pavement' where the stripes are painted, showing the object's relation to the pavement.