boli

In a sentence

• Moja głowa boli od wczoraj.

  My head has been hurting since yesterday.

  Here, 'boli' is used as a verb ('hurts') in the context of describing physical pain.

• Gdy patrzę na tę niesprawiedliwość, boli mnie serce.

  When I look at this injustice, my heart aches.

  In this sentence, 'boli' represents emotional pain or distress metaphorically linked to the heart.

• Jeśli nie boli cię ząb, nie musisz iść do dentysty.

  If your tooth doesn't hurt, you don't need to go to the dentist.

  Here, 'boli' indicates the absence of physical pain as part of a conditional statement.