żółtych

In a sentence

• Widzę żółtych kwiatów w ogrodzie.

  I see yellow flowers in the garden.

  The word 'żółtych' describes the flowers as yellow and is declining to match the genitive plural case.

• Żółtych samochodów jest więcej niż czerwonych.

  There are more yellow cars than red ones.

  Here, 'żółtych' describes the cars as yellow and matches the genitive plural case because of comparison.

• Kupiliśmy żółtych kanarków na targu.

  We bought yellow canaries at the market.

  In this sentence, 'żółtych' describes the canaries and is used in the accusative plural case due to the direct object.