Ejercicio Resuelto
Irregular plurals obviously don't follow any rules. However, we can list them in different types:
- Some change the vowel, the ending or the whole word:
man-men, woman-women, child-children, person-people, tooth-teeth, foot-feet, goose-geese, mouse-mice, louse-lice
- Some words don't change at all:
fish-fish, deer-deer, sheep-sheep, series-series, species-species
- Some words that come from Latin have Latin endings:
phenomenon-phenomena, datum-data, thesis-theses, appendix-appendices