Useful Different Forms of Nouns important for any competitive exam like TET, TAT,HTAT etc...!!!
Nouns normally come in their singular form, however, if these nouns name more than one person, place, thing, animal, event, or idea, it is necessary for you to transform them into their plural form.
These are most common ways of pluralizing nouns:
1. Add “s”
For ex. :
§ coin- coins
§ trap- traps
§ game- games
2. Add “es”
For ex. :
§ potato- potatoes
§ torch- torches
§ box- boxes
3. Change “y” to “i,” and then add “es”
For ex. :
§ reply- replies
§ party- parties
§ baby- babies
Exception: Sometimes, you just have to add “s” without changing “y” to “i” (e.g., chimney- chimneys; trolley- trolleys)
4. Change “f” to “v,” and then add “s” or “es”
For ex. :
§ wolf- wolves (“es”)
§ loaf- loaves (“es”)
§ knife- knives (“s” only)
Exception: Sometimes, you only need to add “s” without changing “f” to “v” (e.g., cliff- cliffs; chef- chefs).
5. For some nouns ending in “um,” change “um” to “a”
For ex. :
§ medium- media
§ curriculum- curricula
§ bacterium- bacteria
§ ovum- ova
§ datum- data
6. For some nouns ending in “is,” change “is” to “es”
For ex. :
§ crisis- crises
§ analysis- analyses
§ thesis- theses
§ axis- axes
§ oasis- oases
7. For some nouns ending in “us” change “us” to “i”
For ex. :
§ radius- radii
§ nucleus- nuclei
§ fungus- fungi
§ stimulus- stimuli
§ bacillus- bacilli
8. Some nouns have the same singular and plural form
For ex. :
§ sheep
§ deer
§ moose
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§ trap- traps
§ game- games