은/ㄴ 적이 있다/없다 is the combination of ‘(으)ㄴ’ which is an ending of a word that indicates an event or action has occurred in the past, It is attached after a verb stem. It is used to express past experiences.
은/ㄴ 적이 있다/없다 means I have experience to in Korean. 은/ㄴ 적이 있다/없다 ( I have experience to …… in Korean also means I have done this before or I havent done this before.
적이 있다. I have experience.
적이 없다. I don’t have experience.
https://www.youtube.com/watch?v=8q2QSyGMEHE
How to use 은/ㄴ 적이 있다/없다 grammar
If a verb has a final consonant you have to use 은 적이 있다. Or 은 적이 없다.
먹다 – 먹은 적이 있다. I have an experience to eat.
찾다 – 찾은 적이 있다. I have the experience to find something.
If a verb has no final consonant you have to use ㄴ 적이 있다. Or ㄴ 적이 없다.
가다 – 간 적이 있다. I have an experience to go there.
사용하다 – 사용한 적이 있다. I have an experience to use this one.
If a verb has ㄹ consonant you have to use ㄴ 적이 있다. Or ㄴ 적이 없다.
살다
산 적이 있다. I have an experience to live there.
산 적이 없다. I dont have an experience to live there.
줍다
주운 적이 없다. I don’t have an experience to pick something on the road by accidentally
Exceptional case-
듣다
들은 적이 있다. I have an experience to listen something.
들은 적이 있다. I don’t have an experience to listen something.
