Singular | Plural |
criterion | criteria |
dormouse | dormice |
foot | feet |
goose | geese |
louse | lice |
man | men |
mouse | mice* |
phenomenon | phenomena |
tooth | teeth |
woman | women |
*For computer mouse, the plural is mice or mouses.
By add –en/–ren.
Singular | Plural |
ox | oxen |
child | children |