Plural of 'Quiz'
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Frequent Errors with the Plural of "Quiz"
Spelling "quizes" instead of "quizzes"
The most common mistake is writing quizes as the plural form. Standard English doubles the final z before adding -es, so the correct plural is quizzes. This follows the pattern of other short words ending in a single stressed consonant sound such as buzz → buzzes.
Forgetting that "quizzes" can be a verb
Many learners treat quizzes only as a plural noun and ignore the verb form. In sentences like "She quizzes the class every Friday," quizzes is third-person singular present, not plural. Check if the subject is singular and doing the action. If so, you likely have the verb form, not the plural noun.
Misusing agreement in sentences
Writers sometimes pair plural quizzes with singular verbs, for example, "The quizzes was hard." The plural noun quizzes needs plural verbs and pronouns. Correct forms include "The quizzes were hard" and "These quizzes help me prepare." Always match verbs and pronouns to the actual number.
Confusing possessives and plurals
Another frequent error is using apostrophes incorrectly. Quizzes is the plural. Quiz's shows singular possession as in "the quiz's instructions." Quizzes' shows plural possession as in "the quizzes' average scores." Remove the apostrophe if you only want the plain plural form.
Overgeneralizing from other plural patterns
Students sometimes extend rules from words like book → books or toy → toys and assume quiz → quizs. Words that end in z are less common, so memorize a few anchor examples such as quiz → quizzes, buzz → buzzes, and fizz → fizzes to reinforce the pattern.
Quick Reference Sheet: Plural and Forms of "Quiz"
How to Use This Sheet
This quick reference summarizes the key facts about the plural of quiz and related forms. You can print or save this sheet as a PDF for rapid review before grammar work or quiz attempts.
Core Forms of "Quiz"
- Base noun: quiz
- Plural noun: quizzes
- Third-person singular verb: quizzes ("She quizzes them.")
- Past tense verb: quizzed
- Present participle / gerund: quizzing
Spelling Rules for "Quiz"
- Double the final z before adding vowel-initial suffixes.
- quiz + -es → quizzes.
- quiz + -ed → quizzed.
- quiz + -ing → quizzing (no extra e).
- Never write quizes, quized, or quizing in standard English.
Noun vs Verb Checklist
- If it names a test or short assessment, use the noun. Example: "We had two quizzes today."
- If it describes the action of testing, use the verb. Example: "The teacher quizzes us every week."
- Check the word before quizzes. A singular subject like she or the teacher usually signals a verb.
- Check the word after quizzes. A noun phrase such as on vocabulary often follows the verb form.
Quick Error-Spotting Tips
- Scan for quizes. Replace it with quizzes.
- Check subject-verb agreement. "Quizzes are" is correct. "Quizzes is" is almost always wrong.
- Look at apostrophes. Plain plural needs no apostrophe: "The quizzes were fair."
- For possessives, use quiz's for one quiz and quizzes' for many quizzes.
Worked Examples on Using "Quizzes" Correctly
Example 1: Choosing the Correct Plural
Question: Choose the correct sentence.
- A. The teacher gave us three quizes this week.
- B. The teacher gave us three quizzes this week.
Step 1: Identify the meaning. The word names several short tests, so you need the plural noun form.
Step 2: Recall the spelling rule for quiz. Words ending in a single z double the consonant before adding -es.
Step 3: Apply the rule. quiz → quizzes, so option B is correct.
Answer: B is correct. "The teacher gave us three quizzes this week."
Example 2: Noun or Verb?
Question: Decide if quizzes is a noun or a verb.
Sentence: "She quizzes the class on grammar every Friday."
Step 1: Find the subject. The subject is She, which is singular.
Step 2: Look at the word right after quizzes. The phrase the class receives the action.
Step 3: Decide the function. A singular subject acting on an object signals a verb in the third-person singular present.
Answer: Here, quizzes is a verb meaning "tests."
Example 3: Possessive vs Plural
Question: Correct the sentence. "The quizs questions were confusing."
Step 1: You need possession, not just a plural. The questions belong to one quiz.
Step 2: Make the singular possessive of quiz. First form the singular noun quiz, then add 's for possession.
Step 3: Write the correct phrase. "The quiz's questions were confusing."
Quiz Plural Usage and Spelling FAQ
What is the correct plural of "quiz" in standard English?
The accepted plural form is quizzes. English doubles the final z and adds -es. The spelling quizes is treated as an error in formal writing, exams, and most educational contexts.
Why do we write "quizzes" and not "quizes"?
The double z protects the short vowel sound in quiz before a vowel-initial ending. English often doubles a final consonant in short, stressed words before adding endings. This pattern appears in quiz → quizzes, buzz → buzzes, and fizz → fizzes.
Is "quiz" an irregular noun?
"Quiz" is sometimes called irregular because learners expect a simple -s plural. However, it still uses the common -es ending that many English nouns use. The only unusual part is the doubled consonant, so it is better to view it as a predictable spelling pattern.
Can "quizzes" be both a noun and a verb form?
Yes. Quizzes is the plural noun form as in "The quizzes were short." It is also the third-person singular present verb form as in "She quizzes us weekly." Always check the subject and the surrounding words to decide which function it has.
How can I quickly check if I used the plural of "quiz" correctly?
Scan your sentence for three things. First, ensure the spelling is quizzes with double z. Second, match verbs and pronouns to plural number when it is a noun. Third, remove apostrophes unless you clearly express possession, such as "the quizzes' results."
