Which word signals a nonrestrictive clause in a complex sentence?
The relative pronouns “which,” “who,” “whom,” and “whose” can all be used to signal a nonrestrictive clause in a complex sentence.
These pronouns often introduce an adjective clause (or relative clause), which is a type of dependent clause. When that dependent clause is connected to an independent clause, it forms a complex sentence.
Adjective clauses can be either restrictive or nonrestrictive. Nonrestrictive clauses are set off with commas.
Note that the relative pronoun “that” is only used in restrictive clauses.
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