gyosil changmuneul yeolmyeon bakkat soriga jal deullyeoyo.

When you open the classroom window, you can hear outside sounds clearly.

Breakdown of gyosil changmuneul yeolmyeon bakkat soriga jal deullyeoyo.

• ~을: object particle
• ~가: subject particle
• 열다: to open
• ~면: when

Questions & Answers about gyosil changmuneul yeolmyeon bakkat soriga jal deullyeoyo.

What does 열면 mean, and how is -면 used in Korean?

-면 is the conditional suffix attached to a verb stem to express “if” or “when.” For 열다 (to open), the stem is 열, so 열 + -면 = 열면, meaning “if/when you open.” It can describe a general truth or habitual action (“When you open the window, …”) or a simple condition (“If you open the window, …”).

Why is 창문 followed by 을 in 교실 창문을 열면?

을/를 marks the direct object of a transitive verb. Here, 창문 (“window”) is what you open, so it takes 을, the object particle. Hence 교실 창문을 열면 literally means “if/when you open the classroom window.”

Why is 바깥 소리 marked with 가 instead of 를 in 바깥 소리가 잘 들려요?

The verb 들리다 is intransitive (passive-like) and means “to be heard” or “to come through (to one’s ears).” In such constructions, the thing heard becomes the subject, taking 가 (or 이), not 를. So 바깥 소리 (“outside sounds”) is the subject, giving 바깥 소리가 잘 들려요 (“outside sounds are heard well”).

What’s the difference between 들려요 and 들어요?