Помогите написать множествиное число man, woman, child, town ,house, cow, room ,horse, sheep . И единствиное mice, shelves, fish, cities, hills,

Man - men
city - cities
woman- women
child- children
town - towns
house- houses
hill - hills
fish- fish
cow- cows
shelf - shelves
room- rooms
horse - horses
mouse- mice
sheep - sheep