uri dongneneun bunrisugeoreul mogyoil bameman hal su isseoyo.

In Korean, 우리 is often used where English would say my. It sounds more natural for things closely connected to the speaker, such as:

• 우리 집 = my house/home
• 우리 엄마 = my mom
• 우리 동네 = my neighborhood / our neighborhood

So 우리 동네는 does not necessarily mean the speaker is talking about a neighborhood shared with the listener. It is just the natural Korean way to say it.

는 is the topic marker. It marks 우리 동네 as the topic of the sentence:

• 우리 동네는 = as for our neighborhood

This gives a sense like in our neighborhood or when it comes to our neighborhood. It can also imply a slight contrast, such as:

• In our neighborhood, you can only do this on Thursday nights.

분리수거 literally means separated collection. In everyday Korean, it usually refers to sorting recyclables/trash and putting them out correctly.

So depending on context, it can mean things like:

• separating recyclables
• sorting garbage
• putting out recycling

It is a very common term in Korea because trash disposal rules are often strict and detailed.

Because 분리수거 is functioning as the object of 하다.

A very common Korean pattern is:

• noun + 을/를 하다 = to do + noun

So:

• 분리수거를 하다 = to do recycling / to sort and put out recyclables

Here:

• 분리수거를 = the thing being done
• 하다 = to do

할 수 있어요 literally means can do or be able to do.

But in sentences about rules, schedules, or what is allowed, it often means:

• can
• are allowed to
• it is possible to

So here, it does not really mean physical ability. It means something more like:

• You are allowed to do recycling only on Thursday nights
• Recycling can only be done on Thursday nights

This is a very common use of -ㄹ 수 있다.

In this sentence, it is much closer to permission/possibility than to physical ability.

Compare:

• 저는 수영할 수 있어요. = I can swim.
  → ability

• 여기서는 사진을 찍을 수 있어요. = You can take pictures here.
  → permission / allowed

In 우리 동네는 분리수거를 목요일 밤에만 할 수 있어요, it means that the neighborhood rules or system only allow it at that time.

This is the time phrase, and it breaks down like this:

• 목요일 = Thursday
• 밤 = night
• 에 = at/on (time marker)
• 만 = only

So:

• 목요일 밤에만 = only on Thursday night / only on Thursday nights

The 만 limits the time. It tells you that this is the only time when the action is possible.

Because 에 is marking the time when the action happens.

With time expressions, Korean often uses 에 to mean at/on:

• 7시에 = at 7 o’clock
• 월요일에 = on Monday
• 밤에 = at night

Then 만 is added to mean only:

• 밤에만 = only at night

So the structure is:

• 밤에
  • 만 → 밤에만

In most normal contexts, it means every Thursday night as a recurring rule.

Korean weekday expressions often work this way:

• 월요일에 쉬어요. = I rest on Mondays / on Monday
• 목요일 밤에만 할 수 있어요. = You can only do it on Thursday nights

Even though Korean does not explicitly mark the plural the way English does, the meaning is usually understood from context.

The subject is omitted because it is understood from context. Korean often leaves out subjects when they are obvious.

In this sentence, the implied subject is something like:

• people in our neighborhood
• residents here
• we

So the full idea is something like:

• In our neighborhood, people can only put out separated recycling on Thursday nights.

Korean does this kind of omission very often.

Yes, it is possible, but the nuance is a little different.

• 목요일 밤에만 해요 = we do it only on Thursday nights
  → describes what people do

• 목요일 밤에만 할 수 있어요 = we can only do it on Thursday nights
  → emphasizes that this is the only allowed/possible time

So the original sentence sounds more like a rule or restriction.

있어요 is in the polite -요 style (해요체). It is very common in everyday conversation and is polite without being extremely formal.

The same sentence in a more formal style would be:

• 우리 동네는 분리수거를 목요일 밤에만 할 수 있습니다.

So:

• 있어요 = polite everyday speech
• 있습니다 = more formal speech or writing