Using only a sequence of transpositions, see if you can take this:
while maintaining English words on each of the three horizontals.
At each step, you may transpose any two neighboring letters, either up-down or left-right.
At each step, you must have three horizontal English words.
You might need to know this word: COAMING. Other than that, all the words along the way should be quite familiar.
Maybe you saw the first version of this puzzle. Extensive experimental evidence suggests that the fun level of this kind of puzzle increases exponentially with the number of horizontal possibilities, so I have devised this new version which emphasizes sideways movement.