a goose
geese
a sheep
sheep
a foot
feet
a bus
buses
a strawberry
strawberries
a mouse
mice
a leaf
leaves
a policeman
policemen
a boy
boys
a knife
knives
a dictionary
dictionaries
a wolf
wolves
a woman
women
a tooth
teeth
a potato
potatoes
a child
children
a tomato
tomatoes
a toothbrush
toothbrushes
a butterfly
butterflies
a reindeer
reindeer
a monkey
monkeys