potem

In a sentence

• Zjadłam obiad, a potem poszłam na spacer.

  I had lunch, and then I went for a walk.

  "Potem" is used here to indicate the sequence of events, meaning "then" or "afterwards."

• Powiedz mi, co potem zrobimy.

  Tell me what we will do next.

  In this sentence, "potem" refers to a future point in time, essentially meaning "next."

• Najpierw zrobimy zakupy, a potem obejrzymy film.

  First, we will do shopping, and then we will watch a movie.

  Again, "potem" is used to signify the sequence of activities, marking what happens after.