The last 15 minutes of the third period were filled with fights and fouls, bad goals and regrettable mistakes.

More chance of us making a regrettable mistake.

To Mohammed Abbas, the leader of the band that committed the crime, it was a regrettable mistake.

In the fog of war, regrettable mistakes happen.

That was a mistake, a regrettable mistake.

Nato says they were a regrettable mistake.

White House officials have characterized the incident as a highly regrettable but innocent mistake.

A regrettable mistake and your visit has happily rectified the mistake.

It was a regrettable mistake but one that had to be made to learn what we know now.

Whatever the difficulties in our relations with that great country, there are gestures which need to be made in order to iron out regrettable mistakes.