1.   A large branch came crashing down.

2.   A middle-aged woman had a lucky escape when a tree crashed down onto her car.

3.   Be careful not to push the unit in too far or it will crash down on to the floor of the casing.

4.   Huge waves crashed down on us.

5.   If the monetary system topples the economic system will also come crashing down.

6.   It was a brave new world-but one which, a week later, came crashing down.

7.   Miguel walked into his room, crashing down on to his mat without the strength to take off his coat.