In the sentence “The queen’s crown is made of diamonds,” the phrase "made of diamonds" is a participial phrase.
Here's a breakdown of the phrases you asked about:
- Adverbial phrase: Modifies a verb, adjective, or adverb, often indicating when, where, how, or why something happens.
- Participial phrase: Begins with a participle (a verb form) and provides additional information about a noun; it often describes the noun.
- Adjectival phrase: Modifies a noun by providing more detail about it.
- Verbal phrase: Refers broadly to phrases that contain a verb form (which could include participial, gerund, or infinitive phrases).
In this case, "made of diamonds" provides additional information about the crown, thus qualifying as a participial phrase.