be played by somebody

I don't think most people let their children play at the front of the house by themselves.

But you're playing by them, and I think things are going well.

He is expected to be ready to play by spring training.

And he is allowed to play in the office by himself.

You have to play by the rules to get on.

He was in the hands of people who played the game by very different rules.

The government's still playing by the old rules, but the game has changed.

Playing this by the book is not the way you want to go, believe me.

It looked like he was playing a board game all by himself.

"These people have the same right to park here as the rest of us who play by all the rules?"