PLURAL DE NOMBRE IRREGULARES
Singular Plural
woman women
man men
child children
tooth teeth
foot feet
person people
leaf leaves
mouse mice
goose geese
half halves
knife knives
wife wives
life lives
elf elves
loaf loaves
potato potatoes
tomato tomatoes
cactus cacti
focus foci
fungus fungi
nucleus nuclei
syllabus syllabi/syllabuses
analysis analyses
diagnosis diagnoses
oasis oases
thesis theses
crisis crises
phenomenon phenomena
criterion criteria
datum data