副词的比较级与形容词的比较级构成方法相同,即单音节和部分双音节副词在词尾加“er”、加“est”构成比较级和最高级；多音节副词在副词之前加more和most构成比较级和最高级；以后缀ly结尾的副词要用more和most.

　　比如fast–faster–fastest

　　early–earlier–earliest

　　late–later–latest

　　beautifully–morebeautifully–mostbeautifully

　　slowly–moreslowly–mostslowly

　　quickly–morequickly–mostquickly

　　另外还有不规则副词的比较级和最高级：

　　比如well–better–best

　　badly–worse–worst

　　much–more–most

　　little–less–least

　　far–farther–farthest