〜koto ga aru〜こと が あるto have done (before)Noteto have done (before)Breakdown of 〜koto ga aru〜こと が ある〜koto ga aruto have done (before)Elon.io is an online learning platformWe have hundreds of Japanese lessons and thousands of exercises.Start learning Japanese nowNihon-shiki romanizationwatasi ha tyuugoku kara kimasitaHepburn romanizationwatashi wa chuugoku kara kimashita