때렸는지에

In a sentence

• 왜 그가 그것을 때렸는지에 대해 아직 이해하지 못했어요.

  I still don't understand why he hit it.

  The word '때렸는지에' is used to mean 'why he hit it', forming a clause to express the speaker's lack of understanding about the hitting action.

• 우리는 그녀가 나무를 때렸는지에 대해 이야기하고 있었어요.

  We were talking about whether she hit the tree.

  The word '때렸는지에' here pertains to conversation about the possibility or fact of her hitting the tree, indicating past action.

• 그들은 아이가 피아노를 때렸는지에 대해 놀라워했어요.

  They were surprised about whether the child hit the piano.

  The word '때렸는지에' is integrated to address surprise in relation to the discussion on the child hitting the piano.