"It happened when I was young."
Translation:Det skjedde da jeg var ung.
September 23, 2015
it's one of the classics of Norwegian as a second language, when to use da and when to use når
Take a look at https://www.duolingo.com/comment/9030961
and if you want some exercises, take a look at http://www.norsksidene.no/web/PageND.aspx?id=99315