The collective noun means things that make more then one person.You can tell if a collective noun is singular or plural by pronouns and verbs you use.Words like team.society,troop and so on.You also add member to the end of a collective noun.Team members,society members,troop members like so.For more information,check out this link.http://www.english-the-easy-way.com/Nouns/Collective_Nouns.htm
