진짜 공부를 더 열심히 해야지. 이번에는 꼭 성적을 올릴 거예요.

Jinjja gongbureul deo yeolsimhi haeyaji. Ibeoneneun kkok seongjeogeul ollil geoyeyo.

I really should study harder. This time, I'm definitely going to raise my grades.

내일 아침에 일어나서 운동해야지. 건강을 위해 더 신경 써야겠어.

Naeil achime ireonaseo undonghaeyaji. Geongangeul wihae deo singyeong sseoyagesseo.

I’m going to wake up tomorrow morning and exercise. I need to take better care of my health.

이제는 진짜로 담배를 끊어야지. 건강이 너무 걱정돼서 결심했어요.

Ijeneun jinjjaro dambaereul kkeuneoyaji. Geongangi neomu geokjeongdoe-seo gyeolsimhaesseoyo.

Now I really have to quit smoking. I decided because I’m worried about my health.

엄마에게 전화를 해야지. 꽤 오래 연락하지 못했네.

Eommaege jeonhwareul haeyaji. Kkwae oraee yeollak-haji mothaetne.

I should call my mom. It’s been quite a while since we last talked.