new -newer-newest
weak-weaker-weakest
Cheap-cheaper-cheapest
short-shorter-shortest
strong-stronger-strongest
cold-colder-coldest
high-higher-highest
low-lower-lowest
clean-cleaner-cleanest
bright- birghter-birghtest
pretty-prettier-prerriest
young-younger-youngest
famous-more famous-the most famous
long -longer-longest
exciting -more eciting-the most exciting
near-nearer-nearest
light -lighter-lightest
dangerous-more dangerous=the most dangerous
一般只要在後面加er,est.
多音节词就在前面 加 more ,the most