I wonder something
For example I say to someone:I don't know how it's written
I'm actually going to ask you something that I have kind of asked you before but I didn't fully understand it.So I just want to clarify it.
So there's the sentence.I wonder why do we use the past participle form of the verb "write" here?
Does it have a passive meaning?
Yes, it does. It's written (passive), because someone wrote it (active).