A plural noun is more than one person, place or thing. The majority of nouns in written English are transformed into their plural noun form through the addition of the letter “s” at the end of the word. However, this is not always the case and there are a number of rules that you should be aware of. Our free infographic provides a handy decision tree that you can use to decide how to change the singular form of a noun into the plural form. Simply start at the beginning and answer each question in turn in order to find out what the plural noun form of your word should look like.
Bear in mind, in some cases, words can be both singular and plural. You can read more in our guide to words that are both singular and plural.
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Thirteen rules for changing singular nouns to their plural form
1. Add s to most nouns.
2. Add es to nouns ending is s, x, z, ch, or sh.
3. For nouns ending in y preceded by a consonant, change y to i and add es.
4. For nouns ending in y preceded by a vowel, add s.
5. For nouns ending in o preceded by a consonant, add es.
6.For nouns ending in o preceded by a vowel, add s.
7. For musical terms ending in o, add s.
8. For nouns ending in f or fe, usually change the f or fe to ves.
9. Add s to the end of singular nouns ending in ful.
10. Change the spelling of some words.
11. Leave some nouns as they are.
12. Add s to the most important noun in a hyphenated word.
13. Add s to proper nouns which do not end in s. Add es to proper nouns which do end in s.
Mr. and Mrs. Walker/the Walkers
Mr. and Mrs. Ross/the Rosses
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