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Quizzes > Literature & Language > English & Grammar

Ready to Master Plural Nouns? Take the Quiz!

Dive into our plural nouns exam and see if you can ace every question!

Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art illustrating a plural nouns quiz on a coral background

This plural nouns quiz helps you practice making singular words plural, including irregular forms and spelling changes. Warm up with a quick practice quiz or go straight to the full plural nouns quiz to spot gaps before an exam and boost accuracy.

What is the plural form of "dog"?
dogses
dogs
dogies
doges
The plural of most English nouns is formed by adding -s. "Dog" follows this regular pattern and becomes "dogs". This is covered in standard grammar resources. See for more.
Choose the correct plural form of "cat".
caties
cats
catz
cates
Regular English nouns typically form their plural by adding -s. "Cat" simply becomes "cats". Irregular or invented spellings like "catz" are not standard. More details at .
What is the plural of "bus"?
busses
busies
buses
bussis
Nouns ending in -s, -sh, -ch, -x, or -z usually take -es in the plural. Thus "bus" becomes "buses". While "busses" can refer to kisses, it is not the standard plural of the vehicle. See for rules.
Select the plural form of "baby".
babyes
babys
babyies
babies
For nouns ending in a consonant plus -y, the -y changes to -i and you add -es. "Baby" thus becomes "babies". This spelling rule avoids awkward consonant clusters. More examples at .
What is the plural of "box"?
boxies
boxen
boxs
boxes
Nouns ending in -x form their plurals by adding -es. Hence "box" becomes "boxes". The form "boxen" is a playful pseudo-plural, not standard English. See for more.
Choose the correct plural of "child".
children
childes
childrenes
childs
The noun "child" is irregular and forms its plural as "children". This irregular pattern dates back to Old English. Regular formation (adding -s) does not apply here. For irregulars, see .
What is the plural form of "mouse" when referring to the animal?
mouses
mice
mouse
mices
The word "mouse" has an irregular plural "mice" in standard English. The form "mouses" is nonstandard when referring to animals. This change follows an Old English vowel mutation pattern. Learn more at .
Select the correct plural of "leaf".
leavs
leaves
leafes
leafs
For nouns ending in -f or -fe, the plural often changes to -ves. Thus "leaf" becomes "leaves". There are exceptions, but this is a common pattern. More details at .
What is the plural form of "tomato"?
tomatoes
tomati
tomaties
tomatos
Nouns ending in -o preceded by a vowel remain regular, but if preceded by a consonant often take -es. "Tomato" ends in a consonant + o, so it becomes "tomatoes". This rule is well-documented in English usage guides. See .
Choose the correct plural of "roof".
roofs
rofs
roofes
rooves
Most nouns ending in -f form the plural with -s rather than -ves. "Roof" thus becomes "roofs". The variant "rooves" is considered archaic. For this exception, see .
What is the plural form of "criterion"?
criterias
criteria
criterions
criteriones
"Criterion" is a Greek-derived noun ending in -on. Its correct plural replaces -on with -a, yielding "criteria". Using -s is not standard for such words. See for Greek plurals.
Choose the correct plural of "phenomenon".
phenomenaes
phenomenons
phenomenae
phenomena
Like "criterion," "phenomenon" is of Greek origin and forms its plural by changing -on to -a, giving "phenomena". The form "phenomenons" is incorrect in formal English. More on Greek-derived plurals at .
What is the traditional Latin plural of "syllabus"?
syllabi
syllabii
syllabuses
syllaba
In traditional Latin usage, nouns ending in -us form the plural in -i, so "syllabus" becomes "syllabi." While "syllabuses" is accepted in modern English, "syllabi" is the classical form. See for Latin plural rules.
Choose the correct plural of "deer".
deers
deer
der
deeres
Some English nouns have the same form in singular and plural. "Deer" is one of these invariant plurals. No additional ending is added. More examples at .
What is the classical plural form of "cactus"?
cacti
cactuses
cactae
cactii
"Cactus" is borrowed from Latin, where the plural ends in -i, giving "cacti." "Cactuses" is acceptable in modern usage, but "cacti" is the classical form. See .
What is the classical Latin plural of "appendix"?
appendixs
appendici
appendixes
appendices
Latin nouns ending in -ix form their plural in -ices, so "appendix" becomes "appendices." Although "appendixes" is used in modern English, the classical form is "appendices." See for details.
Choose the correct Greek-derived plural of "axis".
axises
axii
axes
axae
"Axis" is a Greek-derived noun that replaces -is with -es in the plural, giving "axes." The form "axises" is nonstandard, and other variants are incorrect. For Greek pluralization, see .
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Study Outcomes

  1. Identify Regular Plural Forms -

    Recognize and apply the standard - s and - es endings to form regular plurals accurately.

  2. Apply Spelling Rules for Special Endings -

    Master the changes needed for nouns ending in - y, - f, and - fe to convert them into correct plural forms.

  3. Distinguish Irregular Plural Nouns -

    Learn to spot and use common irregular plurals like "children," "mice," and "geese" without hesitation.

  4. Recognize Invariant and Zero-Change Plurals -

    Understand which nouns keep the same form in both singular and plural (e.g., "sheep," "series").

  5. Handle Latin and Greek Loanword Plurals -

    Apply the correct plural endings for words borrowed from Latin and Greek, such as "criterium" to "criteria".

  6. Evaluate Your Skills with the Quiz Plural -

    Test your knowledge in this free plural quiz to pinpoint strengths and areas for improvement in your plural nouns exam prep.

Cheat Sheet

  1. Forming Regular Plurals -

    Most English nouns form the plural by adding "-s" or "-es" (e.g., cat → cats, box → boxes). A handy mnemonic from Cambridge University is "Add ES for S, X, Z, CH, SH" to remember when to use "-es." Practice with a plural quiz after each rule to reinforce your learning.

  2. Handling Irregular Plurals -

    Some nouns don't follow the regular pattern: foot becomes feet, mouse becomes mice, and child becomes children (Oxford English Dictionary). These irregular forms often derive from Old English, so flashcards or a quick plural nouns exam quiz can help cement them in memory. Visualizing these changes - like picturing tiny mice growing into "mice" - boosts recall.

  3. Nouns Ending in -f/-fe -

    Many words ending in "-f" or "-fe" change to "-ves" (leaf → leaves, knife → knives), but watch for exceptions such as roof → roofs (Merriam-Webster). A simple rule of thumb is "If it sounds like a puff, keep the f; if it hisses, go to ves." Testing yourself with a quiz in plural forms can quickly reveal any gaps.

  4. Latin and Greek Borrowings -

    Scientific and academic nouns often retain their original Greek or Latin plurals: criterion → criteria, phenomenon → phenomena (University of Chicago Press). Recognizing these patterns is crucial for formal writing, so include them in your plural nouns exam prep. Creating a mini "plural quiz" deck focusing on these can sharpen your academic vocabulary.

  5. Zero-Plural (Invariable) Nouns -

    Certain words remain unchanged in both singular and plural form, such as sheep, deer, and series (Cambridge Advanced Learner's Dictionary). These zero-plural nouns can trip up writers, so flag them in your notes and test them with a quick quiz quizzes plural. Repeated exposure and context sentences boost your confidence in using them correctly.

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