Isn't the English Language interesting? :)
~Flammable means the same as inflammable
~ Goods that are sent by ships are called cargo, while goods that go in the car are called a shipment
~Valuable means the same as invaluable
~Copyright is what takes away the right to copy.
~Ravel means the same as unravel
~A house can burn up as it burns down.
~We drive on parkways and park in driveways
"They had just moved in; their boxes lay in the living room, still unpacked." This means that the boxes were not yet unpacked. "Do you still have unpacked boxes in your attic, waiting to be unpacked?" lol!