What plural rule does the word BOX follow and why?
If a word ends in -x, add -es.
Mother-in-law
Mothers-in-law
roof
roofs
atlas
singular
lifes
incorrect
lives
What rule does the word PARTY follow to make it plural and why?
Change the -y to -i and add -es because there is a consonant next to the -y.
middle class
middle classes
Thursday
Thursdays
scissors
both
potatos
incorrect
potatoes
What rule does the word GUY follow to make it plural and why?
Just add an -s because there is a vowel next to the -y.
runner-up
runners-up
crisis
crises
equipment
both
chiefs
correct
What rule does the word TOOTH follow to make it plural and why?
It is irregular so the word has to be changed altogether.
grown-up
grown-ups
hello
hellos
alumni
plural
pianoes
incorrect
pianos
What rule does the word SHELF follow to make it plural and why?
Because of the -f ending, change -f to -ves
Knight Templar
Knights Templar
Williams
Williamses
analysis
singular
navies
correct