不规则名词复数形式:
1. foot → feet mouse → mice goose → geese child → children ox → oxen louse → lice
woman → women man → men
2.单复数同形:
sheep,
deer,
fish,
means,
Chinese,
Japanese,
Swiss,
works,
barracks(兵营)
bellows(风箱)
kennels(狗窝)
3.一些英语外来词的复数形式:
crisis→crises 危机
analysis→analyses 分析
oasis→oases 绿洲
parenthesis→parentheses 括号
axis→axes 轴心
ellipsis→ellipses 日蚀
hypothesis→hypotheses 假定
synopsis→synopses 内容提要
erratum→errata 勘误误表
addendum→addenda 补遗、附录
medium→media 媒体
foot ,fish,man woman policeman,post man child---chiildren 小孩
abacus---abaci 算盘
penny---pence 便士
mouse---mice 老鼠
ox---oxen 公牛