英语中规则名词怎样变复数？

规则名词的复数形式：
名词的复数形式，一般在单数形式后面加-s或-es。现将构成方法与读音规则列表如下：
规则 例词
1 一般情况在词尾加-s map-maps, sea-seas, girl-girls, day-days
2 以s, x, ch, sh结尾的名词后加-es class-classes, box-boxes, watch-watches, dish-dishes
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
5 以元音字母加y结尾的名词，或专有名词以y结尾的，加-s toy-toys, boy-boys, day-days, ray-rays, Henry-Henrys
6 以辅音字母加-o结尾的名词 一般加-es hero-heroes, Negro-Negroes, potato-potatoes, tomato-tomatoes
不少外来词加-s piano-pianos, photo-photos, auto-autos, kilo-kilos, solo-solos
两者皆可 zero-zeros/zeroes, volcano-volcanoes/ volcanos
7 以元音字母加-o结尾的名词加-s radio-radios, bamboo-bamboos, zoo-zoos
8 以-th结尾的名词加-s truth-truths, mouth-mouths, month-months, path-paths,