Yesterday I was practising katakana by writing my classmates' names down, but some of the names were harder than I expected. I have a classmate named Väinö, but neither the ä or ö sounds exists in Japanese. At first I considered writing his name down as Waino, but that sounds like the word vaino which means persecution in my native tongue. How should I write these vowels?
Has anyone had similar problems? How did you solve them?