beautiful
more beautiful - the most beautiful
good
better - the best
young
younger - the youngest
busy
busier - the busiest
happy
happier - the happiest
strong
stronger - the strongest
dirty
dirtier - the dirtiest
funny
funnier - the funniest
wet
wetter - the wettest
big
bigger - the biggest
heavy
heavier - the heaviest
sad
sadder - the saddest
bad
worse - the worst
difficult
more difficult - the most difficult