sueop junge bae-un daneoreul itji anheuryeomyeon memohaseyo.

If you don’t want to forget the words learned in class, take notes.

Breakdown of sueop junge bae-un daneoreul itji anheuryeomyeon memohaseyo.

• ~을: object particle
• 수업: class
• 단어: word
• 배우다: to learn

Questions & Answers about sueop junge bae-un daneoreul itji anheuryeomyeon memohaseyo.

What is the function of -으려면 in 잊지 않으려면?

-으려면 is a conditional connective ending attached to a verb stem. It means “if you intend to…” or “if you want to….” Here, it attaches to the negated verb 잊지 않다 (“not to forget”), so 잊지 않으려면 means “if you don’t want to forget…”

Why does the sentence use the double negative in 잊지 않으려면, and could I say 잊지 않으려고 하면 instead?

The “double negative” comes from 잊지 않다 (“not to forget”) plus the conditional -으려면. You can indeed rephrase it as 잊지 않으려고 하면, which uses -려고 하면 (“if you try to…”). Both are grammatical and mean roughly the same thing. The nuance is subtle:
• -으려면 emphasizes your plan or intention (“if you intend not to forget…”).
• -려고 하면 can feel a bit more like a cause-and-effect (“if you try not to forget…”).

What does 수업 중에 mean, and how is it different from 수업 때 or 수업 동안?