tall - taller - the tallest
thin - thinner - the thinnest
wide - wider - the widest
long - longer - the longest
good - better - the best
fat - fatter - the fattest
old - older - the oldest
large - larger - the largest
rich - richer - the richest
poor - poorer - the poorest
young - younger - the youngest
big - bigger - the biggest
bad - worse - the worst
clean - cleaner - the cleanest
short - shorter - the shortest
hot - hotter - the hottest
cold - colder - the coldest
warm - warmer - the warmest
cheap - cheaper - the cheapest
small - smaller - the smallest
brave - braver - the bravest