Longer the longest
shorter the shortest
larger the largest
bigger the biggest
finer the finest
straighter the straightest
newer the newest
older the oldest
fewer the fewest
younger the youngest
easier the easiest
busier the busiest
lighter the lightest
cleaner the cleanest
smaller the smallest
thinner the thinnest
higher the highest
poorer the poorest
better the best
more the most
worse the worst
less the least
more the most