多音节y结尾的词 将y改为i后加ly easy-easily
happy-happily
heavy-heavily
单音节y结尾的词 直接加ly gay-gayly (gaily)
sly-slyly (slily)
以ve结尾的词 去e加ly true-truly
以le结尾的词 去e加y gentle-gently
possible-possibly
其他以e结尾的词 一律加ly nice-nicely
wise-wisely
polite-politely