She crumbled a biscuit.

That's the way the cookie crumbles.

The old masonry was beginning to crumble.

Sami crumbled to the floor.

Dan crumbled the sandwich and threw it to the floor.

Sami didn't want his marriage to crumble.

The church we went past crumbled five minutes later due to a huge earthquake, and more than a hundred churchgoers were buried alive.

Tom crumbled up biscuits and mixed them into the quark.

This is not wishful thinking or a dream that may be set to crumble before our eyes.

The old brickwork began to crumble.