This
These
Mouse
Mice
Deer
Deer
Hero
Heroes
Knife
Knives
Oasis
Oases
Potato
Potatoes
Child
Children
Man
Men
Foot
Feet
Goose
Geese
Ox
Oxen
Cactus
Cacti
Sheep
Sheep
Woman
Women
Leaf
Leaves
Tomato
Tomatoes
Wife
Wives
Thief
Thieves
That
Those
Fungus
Fungi
Tooth
Theeth
Half
Halves
Person
People