Short
shorter, the shortest
long
longer, the longest
Happy
happier, the happiest
Old
older, the oldest
young
younger, the youngest
Dirty
dirtier, the dirtiest
clean
cleaner, the cleanest
Nice
Nicer, the nicest
sad
sadder, the saddest
fat
fatter, the fattest
fast
faster, the fastest
slow
slower, the slowest
cold
colder, the coldest
hot
hotter, the hottest
large
larger, the largest
quiet
quiter, the quitest
