Plural of 'Quiz'
True / False
True / False
True / False
True / False
Common Errors with “Quizzes” vs “Quizes,” Agreement, and Apostrophes
1) Spelling the plural as quizes
The standard plural of quiz is quizzes. A common trap is adding -es without doubling the final z. Avoid “two quizes” in formal writing and in edited work.
2) Mixing up the plural noun with the verb quizzes
Quizzes can be a plural noun or a 3rd person singular present verb. Use a fast role check before you commit to punctuation and agreement.
- Plural noun: “Two quizzes are on Friday.”
- Verb: “She quizzes the class on Friday.”
3) Fixing spelling but forgetting subject verb agreement
After you correct quizes to quizzes, scan the verb. Many errors are really agreement errors in disguise.
- Wrong: “The quizzes was hard.”
- Right: “The quizzes were hard.”
4) Adding an apostrophe to make a plural
Plural nouns do not take apostrophes. Apostrophes mark possession or contractions, not “more than one.”
- Plural: “We took four quizzes.”
- Singular possessive: “The quiz’s answer key was missing.”
- Plural possessive: “The quizzes’ answer keys were missing.”
5) Misspelling verb forms like quized or quizing
Standard forms are quizzed and quizzing. If you see one z in these verb forms, treat it as an editing error.
Printable Quick Sheet: Correct Forms of “Quiz” and the Double-Z Rule
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Core word forms you must recognize
- Singular noun: quiz ("a quiz")
- Plural noun: quizzes ("two quizzes")
- Verb, base form: quiz ("I quiz the group")
- Verb, 3rd person singular present: quizzes ("She quizzes the group")
- Verb, past tense / past participle: quizzed ("They quizzed us")
- Verb, -ing form: quizzing ("We are quizzing each other")
Spelling rule you apply in this quiz
Double the final z before vowel initial endings in standard spelling for this word family.
- quiz + -es → quizzes
- quiz + -ed → quizzed
- quiz + -ing → quizzing (no extra e)
Forms to reject in formal English
- quizes (incorrect plural)
- quizs (incorrect plural)
- quized (incorrect past tense)
- quizing (incorrect -ing form)
Noun vs verb decision checks
- Look left for a noun signal: a, the, two, many, these, those.
- Look right for a verb pattern: a direct object often follows, as in “quizzes the class,” “quizzes me.”
- Swap test: replace with “tests.” If structure stays the same, it is a verb use. “She tests the class.”
Apostrophes (punctuation only, spelling stays the same)
- Singular possessive: quiz’s ("the quiz’s format")
- Plural possessive: quizzes’ ("the quizzes’ scores")
Worked Editing Examples: From “Quizes” to “Quizzes,” Then Agreement and Possession
Example 1: Fix spelling, then fix agreement
Draft: “Three quizes was scheduled for Monday.”
Step 1, correct the plural spelling: The plural of quiz is quizzes, with a doubled z before -es.
Now you have: “Three quizzes was scheduled for Monday.”
Step 2, check agreement: The subject “Three quizzes” is plural, so the verb must be plural.
Final: “Three quizzes were scheduled for Monday.”
Example 2: Decide noun vs verb when the word is the same
Draft: “The teacher quizzes are short.”
Step 1, test meaning: Is “quizzes” an action here. No, it names a thing the teacher gives. It is a plural noun.
Step 2, add the missing possessive marker: You need possession, not a verb.
Final: “The teacher’s quizzes are short.”
Example 3: Plural possessive with quizzes’
Draft: “All the quizzes scores were posted.”
Step 1, identify the relationship: The scores belong to the quizzes, so use a plural possessive.
Final: “All the quizzes’ scores were posted.”
Plural of “Quiz” FAQ: Spelling Logic, Grammar Roles, and Apostrophes
Why is the plural quizzes instead of quizes?
Standard spelling keeps the /z/ sound and follows a common pattern of doubling a final consonant letter before adding a vowel starting ending. For quiz, that gives quiz + -es → quizzes. In edited Standard English, quizes is treated as a misspelling.
How can quizzes be both a noun and a verb?
Quizzes is a plural noun in “Two quizzes are tomorrow,” and it is a 3rd person singular verb in “She quizzes the class.” Check the subject. If the subject is singular and is doing the action, quizzes is likely the verb.
Is quiz’s ever correct?
Yes. Quiz’s is the singular possessive, as in “the quiz’s answer key.” Do not use quiz’s to mean a plural. Plurals do not take apostrophes.
When do I use quizzes’ with the apostrophe after the s?
Use quizzes’ for plural possession, meaning something belongs to multiple quizzes. Example: “the quizzes’ average score.” The base plural spelling stays quizzes. You only add punctuation.
Are quizzed and quizzing the only standard verb spellings?
In Standard English, yes. The accepted forms are quizzed (past) and quizzing (present participle). Spellings like quized and quizing show up informally, but they are marked wrong in most school, style guide, and editing contexts.
I write titles and headings a lot. Any quick way to avoid the quizes typo?
Add “quizzes” to your personal spell check dictionary if it is not already recognized, and run a final search for “quize” before publishing. If you want extra practice seeing correct plural forms in headings, try Fun Quizzes for When You're Bored and compare how plural nouns are used in titles.
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