yeoljunghaetseumnida
to immerse
immerger
yeoljunghaeyo
I focus
yeoljungsikimnida
yeoljunghaesseoyo
I focused
yeoljunghal geoyeyo
I will focus
yeoljunghal geosimnida
저는 어제 그 일에 열중했습니다.
jeoneun eoje geu il-e yeoljunghaessseumnida.
I focused on that work yesterday.
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