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Forming Plurals

 
 
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Plurals, Two Ladies

Plurals signify that there is more than one of something. Most words in the English language are made plural by simply adding -s to the end of the word. For example, boy becomes boys, kitten becomes kittens, and so on.

So far, so good. The problem comes for words that do not form their plurals in this simple manner. Here are some rules that can help you correctly form plurals for some of these words.

  1. To form the plural of a word that ends with a consonant followed by -y, change the -y to i, and add -es.

    city - cities     lady - ladies     candy - candies

    However, to form the plural of a word that ends with a vowel followed by -y, simply add -s.

    turkey - turkeys     donkey - donkeys     valley - valleys
  2. To form the plural of most words that end with -f or -fe, simply add -s.

    chief - chiefs     safe - safes     gulf - gulfs

    However, in some cases, the plural is formed by changing the -f to v, and adding -es.

    wife - wives     leaf - leaves     knife - knives
  3. For most words that end with -o preceded by a consonant, the plural is formed by adding -es.

    potato - potatoes     hero - heroes     echo - echoes

    When -o is preceded by a vowel, the plural is formed by simply adding -s.

    video - videos     patio - patios     studio - studios
  4. For compound words that are not hyphenated or separated by spaces, the plural is formed by adding -s or -es.

    Plurals, Checks, Writing Checks checkbook - checkbooks     sandbox - sandboxes     windmill - windmills

    However, when a compound word is hyphenated or separated by spaces, -s or -es is added to the word that is to be pluralized. The word to be pluralized is the main word in the compound word.

    mother-in-law - mothers-in-law     poet laureate - poets laureate

    If you can’t identify a main word to be made plural, simply add -s or -es.

    grown-up - grown-ups     lieutenant-colonel - lieutenant-colonels

These rules will not help you with words that have irregular plural forms such as mice and stimuli. But they will help you correctly form the plural for many of the words you encounter.

All articles in the Language Arts category:

     
Building Vocabulary Capitalization Rules Choosing a Topic
Common Foreign Phrases Common Prefixes Commonly Misspelled Words
Confusing Pairs of Words Critical Reading Eponyms
Expository Writing Five Paragraph Essay Forming Plurals
Idioms Metaphors Number Prefixes
Parts of Speech Phonics Rules Proofreading
Using Punctuation Marks Reading Comprehension Reading Novels
Revising and Editing an Essay Similes Spelling Long Words
Transition Words and Phrases Useful Spelling Rules Using Quotation Marks
Word Identification Writing a Book Report Writing a Narrative Essay
Writing a Persuasive Essay Writing a Research Paper Writing Numbers
Writing Techniques Writing Terms  
 
     
 

 
 
     
 
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