Nouns

The spelling rules of plural nouns.

General rules

regular spelling   singular plural
'-s' in most cases   cat cats
tub tubs
dog dogs
house houses
'-es' when a noun ends with: -o potato potatoes
tomato tomatoes
-ss class classes
-x box boxes
-ch watch watches
-sh bush bushes
WARNING:
words of foreign origin take '-s'
-o dynamo dynamos
kilo kilos
kimono kimonos
photo photos
piano pianos
soprano sopranos
consonant + -y turns into ies country countries
baby babies
fly flies
lady ladies
cry cries
vowel + y takes '-s' -ay day days
-ey key keys
-oy boy boys
-uy guy guys
proper nouns   Fry the Frys
  Kennedy the Kennedys
nouns ending with -f / -fe -ves loaf loaves
knife knives
life lives
calf calves
leaf leaves
shelf shelves
thief thieves
wife wives
wolf wolves
half halves
wharf wharves
EXCEPTIONS   chief chiefs
cliff cliffs
handkerchief handkerchiefs
roof roofs
some nouns have both forms -s or -ves hoof hoofs / hooves
scarf scarfs / scarves
dwarf dwarfs / dwarves
nouns which change vowels   foot feet
  louse lice
  mouse mice
  woman women
  goose geese
  man men
  tooth teeth
  child children
  ox oxen