比较级和最高级

silly sillier silliest
happy happier happiest
well better best
beautiful more beautiful most beautiful
careful more careful most careful
thin thinner thinnest
heavy heavier heaviest
bad worse worst
big bigger biggest
fat fatter fattest

siller sillest
happier happiest
better best
more beautiful most beautiful
more careful most careful
thinner thinnest
heavier heaviest
worse worst
bigger biggest
fatter fattest