Irregular Plural Nouns

The English language is full of irregularities and quirks. Of these quirks, perhaps the most difficult one for ESL students to grasp is that of the irregularly pluralized noun. In the majority of cases, words are pluralized by adding an 's' or an 'es' to the end of the word. But many nouns are pluralized in an irregular fashion. A proper knowledge of irregular pluralization is essential to successful writing. We have compiled a quick guide to several of the most prominent examples.

                         Singular                                                  Plural

appendix	appendices
bacterium	bacteria
child	children
criterion	criteria
fungus	fungi
genus	genera
goose	geese
louse	lice
medium	media
nucleus	nuclei
ox	oxen
phenomenon	phenomena
radius	radii
syllabus	syllabi
tooth	teeth

We hope this quick guide will aid you in your writing endeavors. Regularly visit our blog to check back from more helpful hints, suggestions and guides!

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