Singular and Plural Nouns: Rules, Tricks & Board Exam Practice Questions

Mastering Singular and Plural noun forms is essential for scoring full marks in the English Grammar section of your Board Exams. In this Concept Guide, we provide easy memory tricks, important rules, and a list of words that remain the same in both forms. We have also included previous years' Board Question Paper practice questions (PTA models) to help you prepare and revise effectively.

Singular and Plural Rules and Tricks

Exam Tip & Memory Trick: இந்த மந்திரத்தை நினைவில் வைத்துக் (Remember this mantra to easily solve):
Um-a, Us-i, On-a, OO-ee, A-ae, X-ces, F-ves, is-es, y-ies

Suffix Rule (Tip)	Example (Singular to Plural)
Um to a	Datum to Data
Us to i	Focus to Foci
On to a	Criterion to Criteria
OO to ee	Tooth to Teeth
A to ae	Formula to Formulae
X to ces	Matrix to Matrices
F to ves	Loaf to Loaves
is to es	Thesis to Theses
y to ies	Lady to Ladies

Words with the Same Singular and Plural Forms

The following words are either uncountable or retain the exact same form in both singular and plural:

• advice
• aircraft
• baggage
• crossroads
• deer
• dice
• dozen
• fish
• furniture
• gymnastics
• headquarters
• information
• knowledge
• means
• moose
• music
• news
• offspring
• public
• salmon
• scenery
• series
• species
• staff
• swine

Singular and Plural - Practice Questions (PTA Models)

1. Choose the correct plural form of alga from the following: (MDL - 19)

   • a) algum
   • b) algi
   • c) algae
   • d) algas

   Answer: c) algae

2. Choose the correct plural form of loaf from the following: (PTA - 1)

   • a) loafs
   • b) loaves
   • c) loavs
   • d) loafes

   Answer: b) loaves

3. Choose the correct plural form of lorry from the following: (PTA - 2)

   • a) lorrys
   • b) lorry
   • c) lories
   • d) lorries

   Answer: d) lorries

4. Choose the correct plural form of child from the following: (PTA - 3)

   • a) childs
   • b) childrens
   • c) childes
   • d) children

   Answer: d) children

5. Choose the correct plural form of syllabus from the following: (PTA - 4)

   • a) syllables
   • b) syllabus
   • c) syllabi
   • d) syllabuses

   Answer: c) syllabi

6. Choose the correct plural form of alumnus: (PTA - 5)

   • a) alumna
   • b) alumnae
   • c) alumni
   • d) alumnuses

   Answer: c) alumni

7. Choose the correct plural form of deer: (PTA - 6)

   • a) deers
   • b) door
   • c) dear
   • d) deer

   Answer: d) deer