sae iusi meonjeo insahae jwosseoyo.

Yes. In this sentence, 새 means new.

• 새 이웃 = new neighbor
• The noun 새 can also mean bird, but here it is clearly being used as a modifier before 이웃.

So:

• 새 이웃 = new neighbor
• 새가 = a bird (with subject marker)

Context and sentence structure tell you which meaning is intended.

이 is the subject marker.

• 이웃 = neighbor
• 이웃이 = the neighbor / neighbor + subject marker

So 새 이웃이 tells you that the new neighbor is the subject of the sentence—the one doing the action.

A very literal breakdown is:

• 새 이웃이 = as for the new neighbor / the new neighbor (subject)

Since 이웃 ends in a consonant sound, it takes 이 rather than 가.

먼저 means first or before someone else.

In this sentence, it means the new neighbor greeted first, before the speaker did.

So the nuance is something like:

• The new neighbor greeted me first.
• The new neighbor said hello first.

It often suggests order in time or action.

Examples:

• 제가 먼저 갈게요. = I’ll go first.
• 먼저 먹어요. = Eat first.

It is made from several parts:

• 인사하다 = to greet / to say hello
• 해 = the 하다 verb in a connected form
• 주다 = to give
• 줬어요 = past polite form of 주다

So:

• 인사해 주다 literally means to do the greeting for someone

• 인사해 줬어요 = (someone) greeted (someone) for their benefit / greeted (me)

  This is a very common Korean grammar pattern:

• Verb + 아/어 주다

It often shows that the action was done for someone, often with a nuance of kindness, consideration, or benefit.

Good question. Both are possible, but they feel different.

• 인사했어요 = greeted / said hello
• 인사해 줬어요 = greeted me/us, with a nuance that the action was done for me/us or in a considerate way

So 줘요 / 줬어요 adds a sense that the speaker views the action as beneficial, appreciated, or directed toward them.

Compare:

• 새 이웃이 먼저 인사했어요.
  = The new neighbor greeted first.

• 새 이웃이 먼저 인사해 줬어요.
  = The new neighbor greeted me first.
  = The new neighbor kindly said hello first.

In English, we often do not translate this difference very directly, but in Korean it adds an important nuance.

It is not stated explicitly, but it is understood from context.

In Korean, speakers often leave out things like me, you, him, her, or us when they are obvious.

So this sentence naturally implies something like:

• 새 이웃이 먼저 (나한테) 인사해 줬어요.
• The new neighbor greeted (me) first.

The hidden meaning is usually to me or to us, depending on context.

That omission is very normal in Korean.

Yes, writing it as 인사해 줬어요 is standard.

• 인사해
  • 줬어요

In everyday writing, you may also see 인사해줬어요, especially online or in casual writing, but the spaced version is generally preferred in careful writing.

The important thing is that 주다 here is functioning like an auxiliary verb after the main action.

줬어요 is the contracted form of 주었어요.

So:

• 주었어요 → 줬어요

This contraction is very common and natural in speech and writing.

Similarly:

• 보았어요 → 봤어요
• 두었어요 → 뒀어요

So 인사해 주었어요 and 인사해 줬어요 mean the same thing, but 줬어요 is much more natural in everyday Korean.

It is in the polite informal style, often called 해요 style.

• 줬어요 is polite and very common in daily conversation.
• It is appropriate in many normal situations.

Compare:

• 줘 = casual
• 줬어요 = polite
• 주었습니다 / 드렸습니다 = more formal

So the full sentence sounds polite but natural:

• 새 이웃이 먼저 인사해 줬어요.

Yes, you could, but it sounds a little different.

• 새 이웃 is the more natural, everyday way to say new neighbor
• 새로운 이웃 is grammatical, but a bit more descriptive or formal

In many cases, Korean prefers 새 + noun for simple everyday expressions:

• 새 친구 = new friend
• 새 집 = new house
• 새 이웃 = new neighbor

So in this sentence, 새 이웃이 sounds the most natural.

Yes, usually that is the implication.

먼저 tells you that the new neighbor acted before the speaker did. So the sentence suggests something like:

• I had not greeted them yet.
• They took the initiative and said hello first.

That is often why the sentence can feel warm or appreciative. The speaker may be thinking, Oh, the new neighbor greeted me first—that was nice.

The basic order is:

• 새 이웃이 = the new neighbor (subject)
• 먼저 = first
• 인사해 줬어요 = greeted me / said hello first

So the overall pattern is:

Subject + adverb + verb

Very literally:

• The new neighbor first greeted(-for-me).

Natural English:

• The new neighbor greeted me first.

Korean often puts adverbs like 먼저 before the verb, which is very normal.