When the guard saw them, he stopped in his tracks.

When the guards saw the food, they turned me back.

It wasn't good to let the guards see things like that.

The guards turned and saw what I was looking at.

The guard did not see any of them until they were almost upon him.

It did not really matter what the guard had seen, anything was enough.

The guard, ten feet away, looked around carefully but saw nothing.

But our guards saw a man running from the room.

But who was to say that the guards wouldn't see him?

The other guards couldn't see them, but anybody to the north or west could if they looked.