Not so much. The reason is that when people type, the most common letter that are reversed are the ones typed with two hands.
That is "odg" is common for "dog", because if you hit the second key just before the first one you get the misspelled word. When you have "mn" it is typed with the same finger, so the change of reversing the order is very low I think. Still, anytime you have two keys nect to each other it is possible to make a mistake.
I would say these are the more common ones:
ornmey
romeny
romnye