Boring
more boring - the most boring
Easy
easier - the easiest
Popular
more popular - the most popular
Long
longer - the longest
Young
younger - the youngest
Dangerous
more dangerous - the most dangerous
Thin
thinner - the thinnest
Nice
nicer - the nicest
Modern
more modern - the most modern
New
newer - the newest
Beautiful
more beautiful - the most beautiful
Large
larger - the largest
Fat
fatter - the fattest
Heavy
heavier - the heaviest
Good
better - the best
Hot
hotter - the hottest
Funny
funnier - the funniest
Expensive
more expensive - the most expensive
Old
older - the oldest
Bad
worse - the worst
Dirty
dirtier - the dirtiest
Short
shorter - the shortest
Cheap
cheaper - the cheapest
Difficult
more difficult - the most difficult
Strong
stronger - the strongest
Happy
happier - the happiest
Cold
colder - the coldest
Careful
more careful - the most careful
Pretty
prettier - the prettiest
Fast
faster - the fastest