1.   He could not tell whether they were broken ends, or perhaps the loose ends from underwater knots that had come undone.

2.   One of these buttons has come undone.

3.   His shoelace had come undone.

4.   She followed his eyes downwards and cringed inwardly when she realised the top buttons of her shirt had come undone.

5.   At one point, he said, Brewer looked back and said that Byrd had come undone.

6.   -- For many Americans, traditional family and neighborhood ties have come undone.

7.   A piece at a time, collectivist customs forged at the start of the century have come undone.

8.   A sanitation pickup had obviously taken place and one of the bags had somehow come undone over his car.

9.   By the time the meal was served, the relationship between mother and daughter temporarily had come undone.