Grammar Plural of Nouns   Nouns ending with -f       Singular Plural Examples - Singular Examples - Plural Calf Calves Calf is a baby cow. It is a cute animal The calves live in the farm and they become adult animals Dwarf Dwarfs/Dwarves That man is a dwarf. He is a little man Snow White and the Seven Dwarfs is a famous story Half Halves Do you know if he wants a half of the apple? He wants the two halves of the apple because he´s hungry Hoof Hooves/Hoofs Hoof is the foot of some animals Horses, Zebras, Pigs and Elephants have hooves Knife Knives I need a knife to cut the orange May I use those knives to cut the oranges for you? Life Lives He lives his life to help poor people They live their lives traveling the world to help people Loaf Loaves The woman slices the loaf with the knife Are you preparing the loaves to take to the party? Scarf Scarves She wears her scarf around her neck Did she buy new scarves for the cold winter? Shelf Shelves I can see your father´s picture on the shelf On the other shelves I can see many expensive objects Staff Staffs/Staves The staff supports the manager with his job All the staffs love their managers because they are friendly Thief Thieves That thief is robbing the lady´s purse The other thieves are robbing the cars parked in the street Wharf Wharfs/Wharves She is observing a ship at the wharf Those wharfs are very famous for their delicious food Wife Wives That beautiful woman is Michael´s wife Those women are their wives and they are their husbands Wolf Wolves Wolf is a wild animal related to dogs Many wolves live in cold regions of America and Canada   Globalized English School English in English   2009 - 2010 Globalized English School  - All rights reserved