Defining relative clauses
Defining relative clauses give essential information to define or identify the person or thing we are talking about.
Some important things to know about these clauses:
- Commas are not used in defining relative clauses.
- Who, whom and which can be replaced by that. This is very common in spoken English (example sentences e and f).
- The relative pronoun can be omitted when it is the object of the clause. This is especially common in spoken English (example sentence e).