谁知道skirt foot sheep dish map box class knife fox library的复数

问题描述:

谁知道skirt foot sheep dish map box class knife fox library的复数

skirt foot sheep dish map box class knife fox library
skits feet sheep dishes maps boxes classes knives foxs libraries

skirts feet sheep dishes maps boxes classes knives foxes libraries

foot的复数是feet!!!!!!!!!!!!!

skits feet sheep dishes maps boxes classes knives foxs kinves libraries

辅音+y要去y变成i再加es,如:family,复数为families;而day是元音+y,这样是直接加s,是days,如:birthday,复数是birthdays;以o结尾的有生命的+es,如:tomato,复数是tomatoes;无生命的+s,如:piano,复数是pianos;以sh,ch,s,ss结尾的+es,如:dress,复数是dresse等;以fe,f结尾的要把f,fe变成v+es,如:knife,复数是knives;其余的加s.
请借鉴一下