Get ready, 5th graders! Welcome to our free 5th grade grammar quiz - Plural Nouns Quiz: How to Spell Quiz Plural. This interactive plural nouns quiz challenges you to apply plural noun rules, master singular-to-plural switches, and learn how to spell quiz plural and other tricky words. Dive into our step-by-step plural nouns practice test with real examples, timed rounds, and instant feedback to sharpen your skills. By the end, you'll confidently tackle any plural form, from regular endings to irregular nouns. Try our quiz plural interface or a fun noun quiz , track your progress, and ace your next assignment. Ready? Let's begin!
What is the plural form of cat?
catts
cats
cates
catz
Most English nouns form their plurals by simply adding an -s. Since "cat" ends with a consonant and vowel, we only add -s to get "cats". No spelling changes are needed in this case. Learn more about forming plurals.
Choose the correct plural of house.
houses
housi
housess
housen
When a noun ends in a vowel plus -se, we add -s for the plural: house ? houses. We don't double any letters or change the root word. See plural formation rules.
What is the plural form of book?
bookes
books
boox
bookies
Regular nouns like "book" form plurals by adding -s, resulting in "books." No letter changes or special endings are needed. More on English plurals.
Select the correct plural of tree.
treez
trees
tri
treess
The noun "tree" simply takes an -s to become plural: trees. Regular nouns ending in vowels + consonants follow this common pattern. Check out plural rules.
What is the plural form of pen?
penies
pens
penes
penns
Simply add -s to "pen" to form the plural "pens." There's no spelling change for this regular noun. Learn about pluralization.
Choose the correct plural of car.
carrs
caries
cars
carz
Regular nouns ending in a single consonant add -s to become plural, so "car" becomes "cars." No other changes are needed. More on plural forms.
What is the plural of apple?
apples
appless
applis
applae
The noun "apple" follows the regular pattern of adding -s, producing "apples." There is no need to change any internal letters. See plural noun guidelines.
Select the correct plural of dog.
dogz
dogs
dogges
dogies
Simply add -s to form the plural of "dog," resulting in "dogs." This is a straightforward example of the regular plural rule. More about plural rules.
What is the plural form of box?
boxen
boxs
boxies
boxes
Nouns ending in -x require adding -es for the plural. Hence, "box" becomes "boxes." This prevents awkward consonant clusters. Grammar rules for plurals.
Choose the correct plural of baby.
babies
babii
babyen
babys
When a noun ends in a consonant + y, replace the -y with -ies for the plural. So, "baby" becomes "babies." Learn more about y-ending nouns.
What is the plural form of brush?
brushez
brushs
brushies
brushes
For nouns ending in -sh, we add -es to form the plural. Therefore, "brush" becomes "brushes." See list of -sh plural rules.
Select the correct plural of lady.
ladiess
ladys
ladies
ladyen
The noun "lady" ends in a consonant + y, so we change -y to -ies, giving "ladies." This follows the consonant + y rule. More on y-ending plurals.
What is the plural form of church?
churchen
churchies
churches
churchs
Nouns ending in -ch add -es for the plural. Thus, "church" becomes "churches." This is standard for ch-ending nouns. Grammar tips on plurals.
Choose the correct plural of bus.
buses
buss
busies
bussen
When a noun ends in -s, we add -es for the plural form. Hence, "bus" becomes "buses." See pluralization rules.
What is the plural of fox?
foxs
foxes
foxies
foxen
Nouns ending in -x form their plurals by adding -es. So "fox" becomes "foxes." Learn more.
Select the correct plural of hero.
heroies
heroen
heroes
heros
Many nouns ending in a consonant + o take -es in the plural. Thus, "hero" becomes "heroes." See exceptions too.
What is the plural of child?
childs
childes
children
childrens
The word "child" is irregular and forms its plural as "children," not by adding -s. English has several common irregular plurals like this. More on irregular plurals.
Choose the correct plural of mouse.
mices
mouses
mousez
mice
The noun "mouse" changes internally from -ouse to -ice to form "mice." This is another example of an irregular plural. See more irregulars.
What is the plural of tooth?
toothies
tooths
teeths
teeth
The irregular noun "tooth" becomes "teeth" in the plural by changing the vowel. Many body-part words follow similar patterns. Irregular plural list.
Select the correct plural of knife.
knifes
knifves
knifees
knives
Nouns ending in -fe typically change to -ves for the plural, so "knife" becomes "knives." This is a standard spelling change. F-authority on plural rules.
What is the plural of leaf?
leafes
leafe
leaves
leafs
Words ending in -f often replace -f with -ves in the plural, giving "leaves." This covers many natural objects like leaf, wolf, shelf. See plural -f rules.
Choose the correct plural of foot.
foots
feet
feets
footes
The noun "foot" is irregular and becomes "feet" by changing the vowel. This vowel-change pattern is common in some body-part words. More on irregular plurals.
What is the plural of cactus?
cactuses
cactae
cactii
cacti
Some Latin-derived nouns like "cactus" use the Latin plural -i, giving "cacti." Although "cactuses" is used informally, "cacti" is the traditional form. Oxford Dictionaries.
Select the correct plural of criterion.
criteria
criterions
criterias
criterion
Derived from Greek, "criterion" forms its plural as "criteria." The English adaptation keeps the original Greek ending. Greek plurals explained.
What is the plural of phenomenon?
phenomena
phenomenae
phenomenons
phenomenon
The noun "phenomenon" is of Greek origin and takes the plural "phenomena." Unlike regular English plurals, it retains the Greek -a ending. More on Greek plurals.
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AI Study Notes
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Study Outcomes
Apply standard pluralization rules -
Demonstrate how to form regular plural nouns by adding ‑s or ‑es to words ending in s, x, z, ch, and sh.
Recognize irregular plural forms -
Identify and spell common irregular plural nouns and understand why they don't follow standard noun rules.
Spell the plural of "quiz" correctly -
Learn how to spell quiz plural by applying the rule of doubling the final consonant and adding ‑es.
Transform noun endings -
Convert singular nouns ending in y, f, or fe to their correct plural forms according to established plural noun rules.
Evaluate plural usage with a quiz -
Test your skills in a 5th grade grammar quiz format to reinforce learning and improve accuracy on plural nouns practice tests.
Cheat Sheet
Regular Plurals with "-s" -
Most nouns form plurals simply by adding "-s" (e.g., book → books), a rule endorsed by the Purdue OWL writing lab. This is your go-to strategy in any plural nouns quiz for everyday items. Practice by turning singular classroom objects into plurals to build fluency.
Nouns Ending in s, x, z, ch, sh -
For words ending in s, x, z, ch, or sh, add "-es" (e.g., box → boxes, church → churches), as noted by Merriam-Webster. Remember the mnemonic "S, X, Z, CH, SH? Shh… add ES!" to recall this rule during a practice test. This pattern keeps your plural noun rules solid and consistent.
Consonant + y to "-ies" -
When a noun ends in a consonant + y, drop the y and add "-ies" (e.g., baby → babies), a guideline confirmed by Cambridge Dictionary. Try the phrase "Say bye-bye to y and add ies" to lock in this rule before your 5th grade grammar quiz. It's a quick trick to ace how to spell quiz plural and similar forms.
Irregular Plural Nouns -
Some nouns change internally (child → children, mouse → mice), which you can find detailed in Oxford University Press resources. Make flashcards of common irregulars and quiz yourself daily to strengthen recall. Knowing these exceptions boosts your confidence in any plural nouns practice test.
Special Case: quiz → quizzes -
The word "quiz" doubles the final consonant and adds "-es" (quiz → quizzes) due to the short-vowel-stress rule, as highlighted by Grammar Girl. Keep this in mind when wondering how to spell quiz plural correctly - double up then add "-es"! Testing yourself on this tricky form ensures you'll score 100% in your plural nouns quiz.
