An essential relative clause provides necessary, defining information about the noun. On the other hand, non‐ essential relative clauses provide additional, non‐necessary information about the noun.

What did he do? What bile? Dependent clauses are broken into three; adjective (also known as relative), adverb and noun clauses. Adjectival clauses, which contain subject and verb; begin with ...

A relative clause can be used to give additional information about a noun. They are introduced by a relative pronoun like 'that', 'which', 'who', 'whose', 'where' and 'when'. For example ...

[noun, noun, noun] You now know what you need to do to make your sentences parallel: ensure that the co-ordinating units share a common grammatical structure. For number 5, you can choose whether you ...