-곤 하다 abbreviated from -고는 하다 A. V. + 곤 하다 => "from time to time, it does," "now and then" A.V. + 곤 했다 => "used to" This pattern indicates a repeated action. It means "from time to time" or "now and then" when it ends in the present tense, and it means "used to" when it ends in the past tense. 캘리포니아에서는 가끔 지진이 나서 사람들을 놀라게 하곤 한다. => From time to time in California, there is an earthquake and it shocks people. 친구가 가끔 들르곤 한다. => My friend stops by now and then. 남들 따라서 외국 풍습에 잘 휩쓸리곤 했다. => I used to follow foreign custom blindly. 밤이면 아기가 울곤 했다. => The baby used to cry at night. 저는 어릴 때 미국에서 축구를 했어요. I played football in America when I was young. 저는 어릴 때 미국에서 축구를 하곤 했어요. I used to play football in America when I was young. This pattern is commonly used in reminiscences. ~ㄴ/은: Attached to a verb to describe a noun where the action occurred sometime in the past. There is no additional meaning given to it. All we know is that at some point in the past, the action happened. ~던: Attached to a verb to describe a noun where the action is recalled to have occurred repeatedly in the past, and continually repeating to the present (or to the time described in the sentence). ~았/었던: Attached to a verb to describe a noun where the action is recalled to have occurred in the past, but has finished occurring and currently does not occur. I don’t like distinguishing these grammatical principles based on their English translations. Given the number of possible situations that could come up, there is no perfect way to accurately translate any of them. However, the examples below show common translations for each of these grammatical principles in use: 내가 입은 바지 = the pants I wore 내가 입던 바지 = the pants I used to wear 내가 입었던 바지 = the pants I had worn.(I din't wear the pants anymore)

I would if I could but I can't because I don't speak Japanese, Chinese or Korean. However, I would like to practice with you English language if you want to, though.