적이 있나요

have you ever …?

→ 적
phrase Rare #20,789
have you ever …? Used after a verb to ask whether someone has ever had the experience of doing something. Polite question form.
KO: 한국에 가 본 적이 있나요?
EN: Have you ever been to Korea?

일본 음식을 먹어본 적이 있나요?

Have you ever tried Japanese food?

전에도 이런 대화를 한 적이 있나요?

Have you ever had a conversation like this before?

— 어바웃 타임 (2013)