1 cleaner,cleanest
2closer,closest
3 tidier,tidiest
4 shorter, shortest
5 farther, farthest
6 hotter, hottest
7 more generous, most generous
8 more slowly, most slowly
9 more cheerful, most cheerful
10 more, most
11 better,best
12 less, least
13 farther, farthest
14 sader, sadest
15 more dangerous, most dangerous
16 lazier, laziest
17 happier, happiest
18 longer, longest
19 more, most
20 healthier, healthiest