Zero articles: Many nouns have a little grammar word in front of them. Often it's one of the articles, the, a, or an. Some nouns though do not normally need articles. Dan takes us through some of the main groups of nouns that don't require articles, and does it all in 90 seconds. Learn more here www.bbc.co.uk/learningenglish/english/course/upper-intermediate/unit-9/session-1