What may an adjective clause modify?

An adjective clause modifies a noun or pronoun. It provides additional information about the noun or pronoun it describes, acting like an adjective.

Here are some examples:

* The book *that I borrowed from the library* is very interesting. (The adjective clause "that I borrowed from the library" modifies the noun "book")

* The woman *who lives next door* is a doctor. (The adjective clause "who lives next door" modifies the noun "woman")

* The car *which I bought last year* is reliable. (The adjective clause "which I bought last year" modifies the noun "car")

Key points to remember about adjective clauses:

* They always start with a relative pronoun (who, whom, whose, which, that).

* They contain a subject and verb.

* They provide more information about the noun or pronoun they modify.