Learn Hardcore Korean: hoeuiga kkeutnamyeon hoeuisil jomyeongi kkeojyeoyo. - When the meeting ends, the meeting room lights turn off.

-(으)면 can mean both “if” and “when,” depending on context.
Here, it expresses a habitual or automatic result: “when/whenever X happens, Y happens.”
For a single, specific time, Korean more often uses -(으)ㄹ 때 or -았/었을 때 (see below).

Why are there two subjects with -이/가 in one sentence?

The sentence has a subordinate clause and a main clause:
- Subordinate clause: 회의가 끝나면 (subject = 회의)
- Main clause: 회의실 조명이 꺼져요 (subject = 회의실 조명)
It’s normal for each clause to have its own -이/가 subject.
In subordinate clauses like …면, -이/가 is preferred over -은/는.

Could I say 회의는 끝나면 instead of 회의가 끝나면?

Generally, no. In most subordinate clauses (like with -면, -ㄹ 때, -아서/어서), Korean prefers -이/가 for the subject.
회의는 끝나면… sounds odd unless you have a very particular contrastive topic context.

Why is it 조명이 and not 조명가?

What’s the difference between 꺼지다 and 끄다?

꺼지다 = intransitive/passive-like: “to go off, be turned off” (happens by itself or by an unspecified agent).
- Example idea: 불이 꺼져요 (the light goes off).
끄다 = transitive/active: “to turn off (something).”
- Example idea: 불을 꺼요 (someone turns off the light).
Pairs to remember: 켜지다/켜다 (to go on / to turn on).

Does the sentence imply the lights turn off automatically?

Yes, using 꺼지다 suggests the lights go off on their own (e.g., by a system or timer) or without mentioning who turns them off.

Can I say 불이 꺼져요 instead of 조명이 꺼져요?

Yes. 불 is the everyday word for “light” (as in room lights).
조명 is more formal/technical (“lighting” as a system or concept). Both are fine; 불 is more common in casual speech.

Why is it 회의실 조명 and not 회의실의 조명?

In Korean, the possessive 의 is often omitted between two nouns when the relationship is clear.
회의실 조명 is natural and concise. 회의실의 조명 is also correct but feels a bit more formal or explicit.

How would I say “as soon as the meeting ends”?

How would I say “every time the meeting ends”?

What’s the difference between 끝나면, 끝났을 때, and 끝난 후에?

끝나면: when/whenever it ends; condition/habitual result; often general or future-oriented.
끝났을 때: at the time when it ended (specific time reference).
끝난 후에: after it has ended; emphasizes sequence (“after”).
Choose based on whether you want habitual/conditional, a specific time, or an explicit “after.”

Why not 끝내면 instead of 끝나면?

끝나다 (intransitive) = to end, come to an end (meeting ends).
끝내다 (transitive) = to finish/bring something to an end (someone finishes something).
Since the meeting ends on its own, use 끝나면, not 끝내면.

Can I reverse the clause order?

You can say: 회의실 조명이 꺼져요, 회의가 끝나면.
It’s grammatical but less common; Korean typically places the subordinate clause first. In writing, a comma after the subordinate clause is optional but common: 회의가 끝나면, …

What politeness level is 꺼져요? What are other options?

꺼져요: polite informal (해요체).
More formal: 꺼집니다.
Casual/plain: 꺼져 (statement) or 꺼져 can also sound like the rude command “Get lost!” if used to address a person—avoid that. For a polite request to someone, say 조명 좀 꺼 주세요.

Does 꺼져요 ever mean “Go away”?

Any pronunciation tips for this sentence?

회의 is commonly pronounced close to [회이]. Both [회의] and [회이] are acceptable.
끝나면 is pronounced [끈나면] due to t→n assimilation across the syllable boundary.
꺼져요 is [꺼져요]; ㅈ + ㅕ = [져].
Speaking naturally: [회이가 끈나면 회의실 조명이 꺼져요]. Minor variation is normal.

Is the spacing correct? Could I write 회의실조명?

Correct spacing: 회의실 조명 (separate nouns).
회의실조명 (no space) is incorrect.
In casual speech, particles can be dropped: 회의 끝나면 회의실 조명 꺼져요, but keep proper spacing in writing.

How would I tell a person to turn off the lights?

How do I say the lights are already off (state), not “they go off”?

Use the resultant state: 회의실 조명이 꺼져 있어요.
꺼져요 describes the action/event; 꺼져 있어요 describes the state of being off.