jibe amudo eobseulkka bwa taekbaehame matgyeo dallago yocheonghaesseoyo.

-을까 봐 expresses worry, concern, or taking precautions about a possible situation.

So 아무도 없을까 봐 means something like:

• because I was worried no one might be home
• in case no one was home
• for fear that nobody would be home

A key nuance: this does not mean the speaker knows nobody is home. It means they are acting based on a possibility they are concerned about.

In this sentence, the speaker requested delivery to the parcel box because they were worried that there might be nobody at home.

The difference is between a fact and a worry/possibility.

• 아무도 없어서 = because nobody was home
  → this sounds like an established fact
• 아무도 없을까 봐 = because I was worried nobody might be home
  → this expresses concern about a possible situation

So the original sentence is not saying there was actually nobody at home. It is saying the speaker made the request ahead of time because they were worried that might happen.

아무도 is used with a negative verb to mean nobody / not anyone.

So:

• 아무도 없어요 = There is nobody.
• 아무도 안 왔어요 = Nobody came.

By itself, 아무도 does not mean everyone or someone. It works together with a negative expression like 없다, 안, 못, etc.

In this sentence:

• 아무도 없을까 봐 = worried that there might be nobody there

Here 에 marks the location: at home / in the house.

So:

• 집에 = at home

In 집에 아무도 없을까 봐, the phrase means worried that there might be nobody at home.

This 에 is very common with location expressions involving 있다/없다:

• 집에 있어요 = is at home
• 학교에 없어요 = is not at school

This part can be broken down like this:

• 택배함에 = in/to the parcel box or parcel locker
• 맡겨 = leave/entrust
• 달라고 = asking someone to do that for me

So 택배함에 맡겨 달라고 means:

• asking them to leave it in the parcel box
• more literally, asking [someone] to leave it in the parcel box for me

The omitted thing being left is usually the package, so in full it would be something like:

• 택배를 택배함에 맡겨 달라고

But Korean often leaves obvious objects out.

맡기다 is the dictionary form.
맡겨 is the connected form used before another expression.

Here the structure is:

• 맡겨 달라고

This comes from 맡기다 + 주다 in a request/reporting pattern, and the verb appears in the -아/어 form:

• 맡기다 → 맡겨

So you can think of 맡겨 달라고 as to leave it / to entrust it, please in reported-request form.

-아/어 달라고 하다 is used to report that someone asked another person to do something for them.

So:

• 맡겨 달라고 요청했어요 = I requested that they leave it [for me]

The 달라고 part comes from 주다 and adds the sense that the action is being done for the speaker’s benefit.

A useful comparison:

• 문을 닫아 달라고 했어요 = I asked them to close the door
• 택배함에 맡겨 달라고 요청했어요 = I requested that they leave it in the parcel box

This is more natural than trying to use a direct quote like 맡겨 주세요 inside the sentence.

Both are possible, but the nuance is a little different.

• 요청했어요 = requested
  → a bit more formal, administrative, or service-related
• 부탁했어요 = asked as a favor
  → often softer and more conversational

Since this sentence is about a delivery instruction, 요청했어요 sounds very natural. It fits the idea of making a delivery request to a courier or delivery service.

So this sentence has a slightly formal, practical tone.

Korean often omits information that is obvious from context.

In this sentence, several things are understood but not stated explicitly:

• The speaker is probably asking the delivery person or the delivery company
• The thing to be left is probably the package
• The speaker is probably talking about their own home

A fuller version might look something like:

• 집에 아무도 없을까 봐 택배를 택배함에 맡겨 달라고 기사님께 요청했어요.

But Korean usually leaves out words like 택배를 or 기사님께 if the context is already clear.

Not exactly.

맡기다 often means:

• to entrust
• to leave in someone/something’s care
• to check/store/leave something at a designated place

So 택배함에 맡기다 is more than just physically putting something down. It suggests leaving it in the parcel box as the proper place for safekeeping or pickup.

That is why 맡기다 sounds natural here.
If you used 놓다, it would sound more like put down/place, which is less precise for this delivery context.

택배함 is a parcel box, delivery box, or parcel locker.

In Korea, this often refers to:

• a secure delivery box in an apartment building
• a parcel locker where packages can be left when no one is home

So 택배함에 맡기다 means to leave the package in the parcel locker/box.

No, it is not a real question here.

The -을까 part can look like a question ending, but in the grammar pattern -을까 봐, it forms a fixed expression meaning being worried that... might...

So:

• 없을까? by itself could mean Could there be nobody? / I wonder if nobody is there?
• 없을까 봐 means for fear that there might be nobody there

So in this sentence, 없을까 is just part of the grammar pattern expressing concern.

Yes:

• 집에 = at home
• 아무도 = anybody / nobody
• 없을까 봐 = because I was worried there might be nobody
• 택배함에 = in the parcel box
• 맡겨 달라고 = asking them to leave it there
• 요청했어요 = I requested

So the flow is:

Worried that nobody might be home, I requested that it be left in the parcel box.

This is a very natural Korean structure:
reason for concern + requested action

Yes. 요청했어요 is in the standard polite style.

• 요청했어요 = polite past
• dictionary form: 요청하다

So the sentence sounds polite and neutral, suitable for everyday conversation or explaining what you did.

A more casual version might end in:

• 요청했어

A more formal version could be:

• 요청했습니다