Letter on position 1 (m) changed: 10 words bases cases eases gases lases oases pases rases vases wases Letter on position 2 (a) changed: 4 words meses mises moses muses Letter on position 3 (s) changed: 10 words mabes maces mages makes males manes mares mates maxes mazes Letter on position 4 (e) changed: 4 words masas masks masts masus Letter on position 5 (s) changed: 2 words mased maser