The boat shuddered and jerked each time the fish moved its head.

The boat shuddered again, and there was a dull, hollow thump.

The words had barely left his mouth when the boat shuddered with sickening violence.

The air about them began to vibrate and the boat shuddered.

The boat hit something and shuddered, then raced on.

Something thumped them at the waterline once more and the little boat shuddered.

The boat shuddered and fought but she was moving west, the way he wanted.

The boat grumbled and shuddered, then got under way.

The boat shuddered and swung with a new weight.

They had barely parked inside the ferry's belly when the big boat shuddered and got underway.