• Countable nouns have a singular and plural form.
✓ That painting is amazing.
✓ Those paintings are dreadful.
• Some countable nouns ...
• have irregular plurals, eg person/people, mouse/mice.
• do not change in their plural form, eg the sheep is ... , the sheep are ...
• With hyphenated countable nouns, we usually form the plural by pluralising the key word, eg brothers-in-law and over-achievers.
• With organisations and groups of people (eg group/team/etc), it often makes no difference whether the verb is singular or plural.
✓ The government is/are not doing anything to help the arts.
• With some countable nouns, when we want to refer to a group, we use certain phrases ending in of. These include: a flock of birds/sheep, a herd of cows/elephants, a pack of cards/dogs, a bunch of flowers/grapes/keys, a set of encyclopaedias/keys
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