Collins Cobuild

party
→
parties victory →
victories
Nouns ending in a vowel and ‘-y’ add an ‘-s’.
boy → boys day
→ days
key → keys valley
→ valleys
Some common nouns have irregular plurals.
child → children foot
→ feet
man → men
mouse → mice

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tooth → teeth
woman → women
 WARNING:  Some  nouns  that  end  in  ‘-s’  are  uncount  nouns,  for
example ‘athletics’ and ‘physics’.   See Unit
15
.
3
Count nouns can be used with numbers.
… one table… … two cats…
… three hundred pounds.
4
 Singular  count  nouns  cannot  be  used  alone,  but  always  take  a
determiner such as ‘a’, ‘another’, ‘every’, or ‘the’.
We’ve killed a pig.
He was eating another apple.
I parked the car over there.
5
Plural count nouns can be used with or without a determiner. They do
not take a determiner when they refer to things or people in general.
Does the hotel have large rooms?
The film is not suitable for children.
Plural count nouns do take a determiner when they refer precisely to