Nouns
- Countable nouns
- Uncountable nouns
- Uncountable nouns ending with '-s'
- Nouns - plural nouns
- Nouns - pronunciation of plural nouns
- Nouns with the same singular and plural forms
- Nouns with unusual plural form (of foreign origin)
- Nouns with only plural form
- Collective Nouns
- Possessive nouns with 's
In English there is a group of nouns with very unusual plural form. This group consist mainly of nouns of foreign origin especially of Latin and Greek. Below you can find a list with examples of such nouns.
- Singular
- analysis
- appendix
- axis
- bacterium
- basis
- cactus
- criterion
- crisis
- datum
- diagnosis
- focus
- formula
- fungus
- index
- medium
- nucleus
- oasis
- octopus
- phenomenon
- stimulus
- syllabus
- terminus
- thesis
- Plural
- analyses
- appendixes/appendices
- axes
- bacteria
- bases
- cactuses/cacti
- criteria
- crises
- data
- diagnoses
- focuses/foci
- formulae / formulas
- fungi
- indexes/indices
- mediums/media
- nuclei
- oases
- octopuses/octopi
- phenomena
- stimuli
- syllabuses/syllabi
- termini / terminuses
- theses
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