What are the three subclasses of Collective nouns which denote groups of animate?

What are the three subclasses of Collective nouns which denote groups of animate?

Collective nouns which denote groups of animate beings fall into three subclasses: (1)Those which usually take the singular verb and which typically go with the definite article: the aristocracy, the bourgeoisie, the church, the clergy, the elite, the gentry, the press, the public, the rank and file, the youth, etc. (2)Collective nouns that almost invariably take the plural verb: cattle, militia, people, police, poultry, vermin etc. (3)Collective nouns that can take either the singular verb or the plural verb: army, audience, brood, cast, college, committee, community, company, council，crew, department, enemy, family, flock, gang，government, group, herd, jury, majority, media, minority, navy, nobility, opposition, staff, team, etc.