1.   No one had the guts to tell Paul what a mistake he was making.

2.   No-one had the guts to tell Paul what a mistake he was making.

3.   Blow me, what a mistake to make.

4.   What a mistake you made.

5.   As soon as he reached the clubhouse, Everett said, he realized what a mistake he had made.

6.   Boy, what a mistake.

7.   I soon found out what a mistake that was and how much he liked to drink.

8.   I wish I could have understood what a mistake I was making, but I was only a small child.

9.   Nasser must have been made very quickly aware of what a mistake he had made in at first refusing to appear.

10.   What a mistake to make at that point in the game.