Irregular Plural Families
wife - wives
life - lives
knife - knives
tomato - tomatoes
volcano - volcanoes
potato - potatoes
half - halves
calf - calves
wolf - wolves
thief - thieves
sheep - sheep
deer - deer
fish - fish
analysis - analyses
thesis - theses
crisis - crises
foot - feet
man - men
woman - women
mouse - mice
tooth - teeth
child - children
person - people
phenomenon - phenomena
criterion - criteria
cactus - cacti
nucleus - nuclei
hippopotamus - hippopotami
© Worcestershire Speech and Language Therapy 2014