I couldn't believe he was going to admit a mistake.
Times, Sunday Times
It will show you are big enough to admit a mistake and, secondly, the publicity will be massively positive.
The Sun
Do they admit the mistake to the authorities and put his job on the line?
The Sun
She refused to admit her mistake.
Times, Sunday Times
He will be the first to admit the mistake he made, but he will always be a friend.
Times, Sunday Times