Singular and Plural Nouns
8. By just adding –s to some nouns ending in –f or –fe
chief …… chiefs proof …… proofs
dwarf ….. dwarfs safe ……. safes
9. By adding the inside vowels
man …. men tooth ….. teeth
goose …. Geese foot ……… feet
mouse …. mice louse …… lice
10. By adding –en
ox ….. oxen child ….. children
11. No change in plural forms
sheep …. sheep deer ….. deer
cod …. cod salmon …. salmon
12. By adding –s to some unusual nouns. Note where the –s is placed.
Brother-in-law …… brothers –in –law
Passer-by ……. Passers-by
Maid-servant …….. maid- servants
Man-of-war …… men-of-war
13. Some nouns are used only in the plural
scissors spectacles pincers trousers shorts
14. Some plural forms are only used in the singular
news mathematics furniture traffic scenery