Regular plural nouns are formed by adding -s or -es to the singular form of the noun. For nouns ending in s, z, sh, ch, or j, the suffix -es is added. However, some nouns have irregular plural forms where the spelling is changed, such as changing the final f to ve before adding -s, or changing the vowel sound or entire word. Examples of irregular plural nouns provided are men, people, and mice.

1. REGULAR PLURAL
NOUNS
BY: AISHA R. PALMA &
AUBREY ARUGAY

2. -A plural noun indicates that there
is more than one of that noun (while
a singular noun indicates that there
is just one of the noun). Most plural
forms are created by simply adding
an -s or –es to the end of the
singular word.
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3. ✘ Recognize nouns
marked with plural
form –s.
✘ We add the plural suffix
–s to most words:
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4. ✘ CAT
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✘ CATS
✘ bear → bears ✘ zebra → zebras

5. However, after sounds s, z, sh, ch,
and j, we add the plural suffix –
es:
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6. 6
✘ FOX ✘ FOXES
✘ class → classes ✘ sash → sashes

7. Some words
that end
in z also
double their
ending conso
-nant,
like quizzes.
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8. IRREGULAR
PLURAL NOUNS
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9. -Irregular plural nouns are irregular
nouns in the plural form. An
irregular noun is a noun that
becomes plural by changing its
spelling in other ways than adding
an “s” or “es” to the end of the
word. This change can happen in a
variety of ways.
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10. Some irregular nouns take on
the plural form by first changing
the last letter of the word
before adding “s.” Words that
end in “f” are a good example
of this case. To make such a
word plural, you change the “f”
to “ve” and add an “s.”
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11. 11
1
2
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12. Irregular nouns made plural by
changing vowels, changing the word, or
adding a different ending:
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✘ More than one
man = men
✘ More than one
person = people
✘ More than one
mouse = mice

13. References:
https://www.k12reader.com/term/irregular-plural-nouns/
https://courses.lumenlearning.com/styleguide/chapter/regular-plural-nouns/
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THANK YOU!