So it has to be that the load shifted backwards.

The load shifted, only a few inches, but the operator was concerned.

For that matter the load did not even shift.

The load shifted, and the pack thumped awkwardly against her spine.

As such the load could shift and cause the ship to list.

"We get a lot of overturned tractor-trailers here, because their loads shift when they're making the turn," he said.

It creaked loudly as the load of the entire habitat ring shifted.

The load shifted when we made the jump.

If anyone asked, he had heard a bumping noise, and thought perhaps the load had shifted.

Be careful when you're driving the lorry so that the load doesn't shift.