Question

Singular/Plural
Different kinds of nouns form their plural forms differently. We generally make
plurals of countable nouns by adding s. es, les, ves to them.
But there are certain nouns that are always used in their plural form.
Crossroads barracks scissors headquarters species series
pants/trousers spectades/glasses binoculars
We add the phrase a pair of before some plural nouns.
a pair of scissors a pair of trousers
Some nouns are always used in their singular form
permission freedom luggage
equipment homework
grass
aircraft furniture
jewellery education
Study this list of some nouns and their plurals.
SINGULAR
PLURAL
SINGULAR
PLURAL
formula formulae/formulas
passers-by
passer-by
analysis
analyses
commander-in-chief commanders-in-chief
cacti/cactuses
cactus
runners-up
runner-up
crises
crisis
appendices
appendix
​

Answer 1

Answer:

what is your question somes example below may be helpful to you

Explanation:

leaf-leaves

box-boxes

house-houses

fish-fish