1) ‘Some nouns always remain in plural form’—–‘Take plural verb’.

EX: Assets, alms, amends, annals, archives, ashes, arrears, auspices, species, scissors, trousers, pants, etc.

2) ‘Some nouns are plural in form but have singular meaning’—-‘Take singular verb’

EX: News, innings, politics, summons, physics, economics, ethics, mechanics, mathematics, measles, mumps. etc.

3) ‘Some nouns look singular but have plural meaning’—-‘Take plural verbs’.

EX: Cattle, clergy, cavalry, infantry, poultry, peasantry, children, gentry, police.

4) ‘Some nouns are always used in singular’ —- ‘Not plural’. (i.e) Sceneries, furnitures (In correct).

EX: Scenery, poetry, furniture, advice, information, language, business, mischief, bread, stationery, crockery, luggage, baggage, postage, knowledge, wastage, money, jewellery, breakage. etc.

5) ‘Some nouns have the same form in singular as well as in plural’.

EX: Deer, fish, crew, family, team, jury, carp, pike, trout, aircraft, counsel, swine, vermin, etc.

6) ‘If a definite numeral adjective is used before noun they are not pluralised’.

EX: A Pair of dove, A Two hundred rupee note.

‘If an indefinite numeral adjective is used before noun they are pluralised’.

EX: Dozens of women, Hundreds of people.

Other Rules

7) ‘If the same noun is repeated after preposition’—-‘the noun will be singular’.

EX: Town after town, Row upon row.

8) Hyphenated nouns generally do not have plural form (Except a few).
Ex: With hyphens: We have a two-year-old child. (Year is singular)
No hyphens: The child is two years old. (Years are plural)

Exceptions cases: Mother – in – law, Mothers – in – law.

9) ‘Some nouns are known as common gender nouns’—- ‘They can be used for either sex’.

Ex: Teacher, student, child, clerk, candidate, advocate, worker, writer, author, leader.

10) Adjective used with These Two categories of Nouns

• Countable nouns take before them adjective of numbers-two, ten, hundred. etc. Adjective of quantity-many, several, few. etc.

• Uncountable nouns take before them adjectives which do not denote quantity or number- little, some, no, a lot, much. etc.

• Indefinite article ‘a’ and ‘an’ can be used generally with countable nouns.

11) In animate noun- ‘apostrophe’ is not used.

Ex: Car’s glass[incorrect], glass of the car[correct]