36 Irregular Plurals in English
- Person –> People
- Foot –> Feet
- Tooth –> Teeth
- Child –> Children
- Mouse –> Mice
- Sheep –> Sheep
- Fish –> Fish
- Leaf –> Leaves
- Goose –> Geese
- Woman –> Women
- Aircraft –> Aircraft
- Apex –> Apices
- Bison –> Bison
- Crisis –> Crises
- Curriculum –> Curricula
- Datum –> Data
- Focus –> Foci
- Series –> Series
- Vita –> Vitae
- Tuna –> Tuna
- Quiz –> Quizzes
- Index –> Indices
- Man –> Men
- Ellipsis –> Ellipses
- Codex –> Codies
- Lavra–> Lavrae
- Alumna –> Alumnae
- Erratum –> Errata
- Ox –> Oxen
- Oasis –> Oases
- Swine –> Swine
- Trout –> Trout
- Genus –> Genera
- Focus –> Foci
- Diagnosis –> Diagnoses
- Analysis –> Analyses