čo

In a sentence

• Čo je tvoje meno?

  What is your name?

  In this sentence, "čo" works as an interrogative pronoun used to ask about someone's name.

• Neviem, čo si myslíš o tomto filme.

  I don't know what you think about this movie.

  Here, "čo" functions as a relative pronoun connecting the two clauses, indicating the object of thought.

• Kupujem všetko, čo je na zozname.

  I am buying everything that is on the list.

  In this case, "čo" serves as a conjunction that introduces a defining relative clause, providing additional information about "všetko".