Learn Hardcore Korean: gyeyakseoreul geuphage ilgneura jungyohan jogeoneul hana mos bwasseo. - I missed an important condition because I read the contract in a hurry.

Breakdown of gyeyakseoreul geuphage ilgneura jungyohan jogeoneul hana mos bwasseo.

What does -느라 mean in 읽느라?

-느라 means something like because I was busy doing X, often with the nuance that doing X led to a bad or regrettable result.

So:

In this sentence, it connects the first action to the negative outcome:

계약서를 급하게 읽느라 중요한 조건을 하나 못 봤어.
Because I was reading the contract in a rush, I missed one important condition.

A key point: -느라 is commonly used when the result is negative, inconvenient, or unfortunate.

Why is it 읽느라 and not 읽어서?

Both can sometimes be translated as because, but they are not the same.

This is a general way to say because or to connect actions.

This specifically emphasizes that someone was occupied with an action, and because of that, something else happened—usually something negative.

So in your sentence:

읽어서 would sound more neutral or less natural here.
읽느라 is better because the speaker is saying they were so busy reading the contract hurriedly that they failed to notice something important.

Why are there two -을/를 markers in the sentence: 계약서를 and 조건을?