고심하다

苦心하다★★★advanced

동사 · verb혼종어 · mixed origin word

Meaning

take pains; rack one's brains — To deliberate about a hard-to-solve problem.

Conjugations

고심해고심하는고심하여고심하니고심합니다고심해요고심했어고심했어요고심했습니다