Advanced English Grammar July 18, 2017
SINGULAR AND PLURAL NOUNS (REGULAR AND IRREGULAR NOUN)
Singular noun refer to one noun.
Plural noun refer to more than one noun.
Regular nouns mean that when they change their form they follow the usual pattern, meanwhile the irregular nouns do not follow the usual pattern
REGULAR NOUNS
add -s at the end of a noun
the plural of nouns ending in -s,-ch, -z, -x or -sh is formed by adding -es to the root word.
IRREGULAR NOUNS
the plural of most nouns ending in -o preceded by a consonant is formed by adding -es to the root word. If the -o is preceded by a vowel, we just add -s. But other words that ends in -o can be pluralized either ways.
the plural of nouns that end in -f or -fe is formed by replacing -f and -fe with -ves
some nouns are plural in form and do not have singular form.