Some examples of word usage: off and on
1. I have been studying Korean off and on for the past year.
나는 작년부터 한국어를 가끔 공부해왔어요.
2. The power has been going off and on all day.
전기가 하루 종일 켜지고 꺼지고 해요.
3. We have been seeing each other off and on for a few months.
우리는 몇 달 동안 가끔 만나고 있어요.
4. The weather has been changing off and on all week.
날씨가 일주일 동안 가끔 바뀌고 있어요.
5. Our relationship has been rocky, with arguments off and on.
우리의 관계는 가끔 다툼이 있어서 변화무쌍해요.
6. I have been feeling sick off and on for the past few days.
저는 며칠 동안 가끔 병이 들어와요.