short
higher
shorter
highest
shortest
以字母e词尾的词，加-r或-st
late
fine
later
finest
latest
finest
重读闭音节词词尾只有一个辅音字母时，先双写辅音字母，再加-er或-est
hot
big
thin
fat
hotter
bigger
thinner
fatter
hottest
biggest
thinnest
fattest
以“辅音字母+y”结尾的双音节词，先把“y”改为“i”，再加
-er或-est
funny
easy
early
