eojesbameneun makchareul nohchilkka bwa miri noseondoreul hwaginhaesseo.

어젯밤 means last night.

The ending -에는 is made of:

• -에: a time/location particle
• -는: the topic particle

So the nuance is roughly:

• 어젯밤 = last night
• 어젯밤에 = last night
• 어젯밤에는 = as for last night / last night, in particular

Here, -는 helps set the scene and can add a slight contrastive feeling, like as for last night....

Also, with time words, -에 is often optional in Korean, so learners may also see sentences with just 어젯밤 and no particle.

In standard writing, 어젯밤 is the normal form.

It is a fixed compound meaning last night:

• 어제 = yesterday
• 밤 = night
• together: 어젯밤

You may sometimes hear people say something that sounds like 어제 밤 in casual speech, but 어젯밤 is the standard form you should learn and write.

Korean often leaves out the subject when it is clear from context.

So in:

• 어젯밤에는 막차를 놓칠까 봐 미리 노선도를 확인했어

the subject is understood, usually as I:

• Last night, I checked the route map in advance because I was worried I might miss the last bus/train.

This is extremely common in Korean. If the subject is obvious, it is often omitted.

막차 means the last vehicle on a route for the day.

Depending on context, it can mean:

• the last bus
• the last train
• the last subway

So it is often translated as the last bus or the last train, depending on what kind of transportation the speaker is talking about.

-를 is the object particle.

The verb 놓치다 means to miss, so the thing being missed is the object:

• 막차를 놓치다 = to miss the last bus/train

Even though 막차를 놓칠까 봐 is part of a longer clause, 막차 is still the object of 놓치다, so it takes -를.

놓칠까 봐 comes from:

• 놓치다 = to miss
• 놓칠까 = might miss / maybe will miss?
• -ㄹ까 봐 = because one is worried that / for fear that / in case

So 막차를 놓칠까 봐 means:

• because I was worried I might miss the last bus/train
• for fear of missing the last bus/train

This grammar is often used when:

1. there is an unwanted possibility, and
2. someone does something in response to that worry.

That fits this sentence perfectly:

• worry: I might miss the last one
• action: I checked the route map in advance

Not exactly.

A more natural way to understand -ㄹ까 봐 is:

• because I’m worried that...
• for fear that...
• in case...

It is not a neutral cause like -아서/어서.
It specifically carries a sense of concern about a possible bad outcome.

Compare:

• 비가 와서 우산을 가져갔어 = It rained / because it was raining, I took an umbrella
• 비가 올까 봐 우산을 가져갔어 = I took an umbrella because I was worried it might rain

That second one is the same kind of feeling as in your sentence.

Historically, yes, but for learners it is best to treat -ㄹ까 봐 / -을까 봐 as a fixed grammar pattern.

In modern Korean, you should learn it as one unit meaning:

• because I’m worried that...
• in case...
• for fear that...

So do not try to interpret it word by word as if it literally meant see whether I might miss. In this sentence, it functions as a set expression.

미리 means in advance, beforehand, or ahead of time.

It shows that the speaker checked the route map earlier, before the possible problem happened.

So:

• 노선도를 확인했어 = checked the route map
• 미리 노선도를 확인했어 = checked the route map in advance

Without 미리, the sentence would still be grammatical, but it would lose the clear idea of preparing ahead of time.

노선도 means a route map or line map, especially for transportation.

Examples:

• bus route map
• subway line map
• transit route diagram

By contrast, 지도 is a more general word for map.

So:

• 지도 = a map in general
• 노선도 = a map showing routes or lines

In this sentence, 노선도 makes sense because the speaker is checking transportation routes to avoid missing the last ride.

확인하다 means to check, to confirm, or to verify.

It sounds more deliberate than just 보다:

• 봤어 = looked at / saw
• 확인했어 = checked carefully to make sure

So 노선도를 확인했어 suggests the speaker was not just casually glancing at the map, but checking it to make sure they understood the route or timing.

That matches the worry in 놓칠까 봐 very well.

확인했어 is in the casual, non-polite style.

It is the kind of ending you would use:

• with friends
• with someone younger
• in a diary
• in casual conversation

The polite version would be:

• 어젯밤에는 막차를 놓칠까 봐 미리 노선도를 확인했어요.

So the meaning is the same; only the speech level changes.

That is the normal pattern in Korean.

Korean often puts background or reason first, and the main action later:

• 막차를 놓칠까 봐 = because I was worried I might miss the last bus/train
• 미리 노선도를 확인했어 = I checked the route map in advance

So the structure is basically:

• [reason/background] + [main action]

This is very common in Korean and often feels more natural than English-style word order.

Yes. 놓치다 is a very common verb meaning to miss, and it can be used for many kinds of things.

For example:

• 버스를 놓치다 = miss the bus
• 기회를 놓치다 = miss an opportunity
• 중요한 부분을 놓치다 = miss an important part
• 전화를 놓치다 = miss a call

So in this sentence, it means missing the last bus/train, but the verb itself is much broader.