Example hot-hotter-(the) hottest 1)smal,warm,cold,long,short,nice,big 2)bad,good 3)interesting,beautiful.

1) Smaller, warmer, colder, longer, shorter, nicer, bigger
2) worse, better
3) more interesting, more beautiful.
1) the smallest, the warmest, the coldest, the longest, the shortest, the nicest, the biggest
2) the worst, the best
3) the most interesting, the most beautiful.