떨리는지

In a sentence

• 그는 발표를 앞두고 얼마나 떨리는지 보여줬어요.

  He showed how nervous he was before his presentation.

  In this sentence, '떨리는지' (how nervous/shaky) is used to describe a person's emotional reaction in anticipation of an event, emphasizing the state of being nervous or tense.

• 나는 첫 데이트에 떨리는지 확인해야 했어요.

  I had to check if I was nervous about my first date.

  Here, '떨리는지' (if nervous/shaky) is used in the sense of questioning or confirming one's emotional response to a situation.

• 그녀는 무대에 떨리는지 아무렇지 않은 척 했어요.

  She pretended not to be nervous on stage.

  '떨리는지' (whether shaky/nervous) in this context reflects the person's effort to conceal their true emotional state, observing someone's reaction or inner feelings.