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GRAMMAR
PLURAL SPELLING RULES
Add -s
Most nouns + s
book → books
pen → pens
Add -es
Ends in -s, -x, -ch
box → boxes
bus → buses
y → ies
Consonant + y
baby → babies
city → cities
Vowel + y
Vowel + y + s
boy → boys
toy → toys
-f / -fe → -ves
Most change to -ves
Change to -ves
leaf → leaves
wolf → wolves
Exceptions (+s)
roof → roofs
chief → chiefs
-o endings
Some add -es
Add -es
hero → heroes
potato → potatoes
Exceptions (+s)
photo → photos
piano → pianos