Singular
dog or dogs
dog
cow or cows
cows
woman's coat or women's coats
woman's coat
heroes' feast or hero's feast
heroes' feast
singular: mice or mouse
mouse
elephants or elephant
elephant
goose or geese
geese
girls' coats or girl's coat
girl's coat
trash cans' lids or trash can's lid
trash cans' lids
plural: loaf or loaves
loaves
wolf or wolves
wolf
deer or deers
deer
deer's hide or deer's hides
deer's hide
geese's flock or goose's flock
geese's flock
plural: children or child
children
tooth or teeth
tooth
fish or fishes
fish
Science teacher's desk or Science teachers' desk
Science teacher's desk
wolf's den or wolves' den
wolves' den
Plural: womens or women
women
foot or feet
foot
wolf or wolfs or wolves
wolves
girls' basketball or girl's basketball
girl's basketball
fish's lairs or fish's lair
fish's lairs
possessive plural: rock's creek or rocks' creek
rocks' creek