Определение и Значение "noun clause"

What is a "noun clause"?

A noun clause is a dependent clause that functions as a noun within a sentence. It can serve various roles, such as a subject, object, or complement. Noun clauses typically begin with words like "that," "whether," "if," "who," "what," or "why." For example, in the sentence "What she said surprised me," the clause "What she said" acts as the subject. In another example, "I do not know whether he will come," the noun clause "whether he will come" serves as the object of the verb "know." Noun clauses are essential for adding depth and complexity to sentences, allowing for more nuanced expressions of thoughts, questions, and statements.