List of 36 Important Irregular Plural Nouns in English

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Irregular Plural Nouns in English! Following are 36 important irregular plurals examples you should learn by heart to master your English grammar.

Irregular Plural Nouns| Rules

Words that end in “f”, you change the “f” to “ve” and add an “s.”

Irregular plural nouns that end in ves:

• knife => knives
• wolf => wolves
• elf => elves
• loaf => loaves
• calf => calves
• shelf => shelves
• loaf => loaves

Changing vowels, changing the word, or adding a different ending

• man => men
• foot => feet
• tooth => teeth
• louse => lice
• cactus => cacti
• goose => geese
• person => people
• mouse => mice
• appendix => appendices
• ox => oxen
• child => children

Keeping the same spelling as the singular form or by adding an s or es.

• quail => quail or quails
• cod => cod or cods
• fish => fish or fishes
• shrimp => shrimp or shrimps

Irregular Plural Nouns List

Learn a list of 36 irregular plural nouns in English.

• Ellipsis –> Ellipses
• Codex –> Codices
• Larva–> Larvae
• Alumna –> Alumnae
• Erratum –> Errata
• Ox –> Oxen
• Oasis –> Oases
• Swine –> Swine
• Trout –> Trout
• Genus –> Genera
• Diagnosis –> Diagnoses
• Analysis –> Analyses
• Man -> Men
• 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

Irregular Plurals | Image