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.

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] 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 want to use ...

As the name entails, a comparative adjective is used to compare and contrast two nouns. Common comparative adjectives include better, worse, larger and smaller. A compound adjective clause uses ...

The relative clause cannot stand on its own. Instead, it is contained by another sentence constituent, usually a noun phrase. Like all clauses, a relative clause must have at least a subject and a ...

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 ...