Korean] 🇰🇷 often say to friend in class

What do you often say to your friend in class?

I often say these sentences.

1. 졸려 (졸리다) sleepy
    I don't know why but I'm always sleepy during the class, and not sleepy anymore if the class finish.
2. 배고파 (배고프다) hungry
    It's always the same when I go to class because I'm pressed for time. So I'm always hungry.
3. 피곤해 (피곤하다) tired
   Maybe it's because I watch a lot of dramas at night?
4. 어려워 (어렵다) difficult
    Why is every study difficult? It's a mystery.
5. 뭐라고? (뭐라고 하다/했다) What did you say?
   I don't understand anything my friend says in class for reasons from 1 to 4.

What about you?
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