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