Used to express that something is expected, natural, or the proper way things should be. Can express both 'the way to do X' and 'it's natural that X'.

• •Natural: "시간이 가면 잊는 법이에요" (It's natural to forget as time passes)
• •Way to do: "이렇게 하는 법이에요" (This is the way to do it)