Shorter the shortest
Hotter the hottest
Longer the longest
Whiter the whitest
Fatter the fattest
Greater the greatest
Wider the widest
Deeper the deepest
Better the best
Older the oldest
Stronger the strongest
Worse the worst
More beautiful the most beautiful
Merrier the merriest
Short-shorter-the shortesthot-hotter-the hottestlong-longer-the longestwhite-whiter-the whitestfat-fatter-the fattestgreat-greater-the greatestwide-wider-the widestdeep-deeper-the deepestgood-better-the bestold-older-the oldeststrong-stronger-the strongestmerry-merrier-the merriestbad-worse-the worstbeautiful-more beautiful-the most beautiful