1 .一些特殊词的变化：
this-----these that-----those he/she/it----they is----are 2 .一般性的可数名词变复数时直接加“s”。
bird----birds pear----pears flower----flowers room-----rooms brother---brothers sister----sisters 3 不可数名词的单复数形式一样。
milk----milk juice----juice bread----bread rice----rice water -----water honey----honey 4, 以元音字母结尾的名词变复数时加“es” tomato---tomatoes potato----potatoes 5, 有些成双成对的单词常以复数形式出现.hands(手） eyes(眼睛）
gloves(手套）
shoots(靴子）
trousers(裤子）
ears(耳朵） tooth--teeth(牙齿) legs(腿) foots(脚）chopsticks(筷子) socks(袜子）等
6.以“y”结尾的名词多变“y”为“i”再加“es”但“y”前是元音字母的不需作此变化.butterfly----butterflies family---families
但 boy---boys toy----toys monkey----monkeys key----keys
day----days 7, 单词中含有名词“man”的要变“man”中的“a”为“e”
postman----postmen fireman---firemen milkman----milkmen fisherman---fishermen man---men
woman---women policeman---policemen 等.8 以“ch ” “sh” “x” “s”结尾的名词变复数时加“es”
peach—peaches pencil-box---pencil-boxes cla-claes box-boxes watch-watches dish-dishes 10, 以 “f”或“fe”结尾的名词变复数时要去掉“f”或“fe”再加“ves” leaf----leaves knife----knives
thief-thieves loaf-loaves
wife-wives 11 单词本身以元音字母“e”结尾的直接加“s”
orange----oranges pie---pies cake---cakes bee---bees cle----uncles 13，以元音字母开头的名词单数表达时前不是“a”而是\"“an” an orange an egg an apple an elephont an ice--cream 3以-f或-fe结尾的词 变-f和-fe为v再加-es leaf-leaves, thief-thieves, knife-knives, loaf-loaves, wife-wives 加-s belief-beliefs, chief-chiefs, proof-proofs, roof-roofs, gulf-gulfs 4以辅音字母加y结尾的名词，变y为i加-es party-parties, family-families, story-stories, city-cities piano-pianos, photo-photos, auto-autos, kilo-kilos, solo-solos 7以元音字母加-o结尾的名词加-s
un
radio-radios, bamboo-bamboos, zoo-zoos 8以-th结尾的名词加-s truth-truths, mouth-mouths, month-months, path-paths, 2.不规则名词复数：
英语里有些名词的复数形式是不规则的，现归纳如下：
规则 例词
1改变名词中的元音字母或其他形式
man-men, woman-women, foot-feet, goose-geese, mouse-mice 2单复数相同
sheep, deer, series, means, works, fish, species li, yuan, jin, 3只有复数形式
ashes, trousers, clothes, thanks, goods, glaes, compaes, contents 4一些集体名词总是用作复数
people, police, cattle, staff
5部分集体名词既可以作单数（整体）也可以作复数（成员） audience, cla, family, crowd, couple, group, committee, government, population, crew, team, public, enemy, party 6复数形式表示特别含义
customs(海关), forces(军队), times(时代), spirits(情绪), drinks(饮料), sands(沙滩), papers(文件报纸), manners(礼貌), looks(外表), brains(头脑智力), greens(青菜), ruins(废墟)
7表示“某国人”加-s
Americans, Australians, Germans, Greeks, Swedes, Europeans 单复数同形
Swi, Portuguese, Chinese, Japanes
