If I wanted to ask about the thing or things that made my son's clothes dirty, what would I say?
I know dirty works as a verb, but when I said:
What dirtied your clothes?
It didn't strike me as a natural sentence, so I googled the question (with quotation marks) to be sure, but got zero results. That's when I realized this question format is not how you would ask about the reason for dirty clothes. I know there could be many ways to ask the same question. For example:
Why are your clothes dirty?
I want to know the common and natural way of asking about this.