Collective nouns name a group of people, animals, or things.
People: family, team, army, staff, class, band
Animals: herd, pack, school, colony, nest, swarm
Things: bundle, bunch, set, box, collection, fleet
Use a singular verb when you consider the members of the group as one unit.
- The team has changed its strategy.
- The herd was moving south.
- A bundle of clothes was on the table.
Use a plural verb when you consider the members of the group as individuals.
- People are fearful of rising crime in the area.
- The herd were running off in different directions.
- The British fleet were sailing up the Thames.
Collective nouns envocabulary.com