eojesbameneun makchareul nohchilkka bwa miri noseondoreul hwaginhaesseo.

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

Breakdown of eojesbameneun makchareul nohchilkka bwa miri noseondoreul hwaginhaesseo.

• ~를: object particle
• ~는: topic particle
• ~에: time particle
• 확인하다: to check

Questions & Answers about eojesbameneun makchareul nohchilkka bwa miri noseondoreul hwaginhaesseo.

What does 어젯밤에는 mean, and why does it have -에는?

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.

Is there a difference between 어젯밤 and 어제 밤?

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.

Why is there no subject in this sentence?