Which phrase type uses 'to' plus a verb and can function as a noun, an adjective, or an adverb?

Which phrase type uses 'to' plus a verb and can function as a noun, an adjective, or an adverb?

• A. Infinitive phrase
• B. Gerund phrase
• C. Participial phrase
• D. Prepositional phrase

Answer: (A)

Infinitive phrases are built with to plus the base form of a verb. That to+verb structure lets the phrase take different jobs in a sentence: as a noun, as an adjective, or as an adverb. As a noun: To travel the world is his dream. The whole phrase acts as the subject. As an adjective: I found a book to read. The phrase describes the noun book. As an adverb: She left early to catch the bus. The phrase explains why she left early, modifying the verb left. This is why the phrase type that uses to plus a verb is the one that can function in all three roles. Gerund phrases use -ing and mostly function as nouns. Participial phrases use a participle to modify a noun. Prepositional phrases start with a preposition and end with a noun or pronoun, not with to plus a verb.

Infinitive phrases are built with to plus the base form of a verb. That to+verb structure lets the phrase take different jobs in a sentence: as a noun, as an adjective, or as an adverb.

As a noun: To travel the world is his dream. The whole phrase acts as the subject.

As an adjective: I found a book to read. The phrase describes the noun book.

As an adverb: She left early to catch the bus. The phrase explains why she left early, modifying the verb left.

This is why the phrase type that uses to plus a verb is the one that can function in all three roles. Gerund phrases use -ing and mostly function as nouns. Participial phrases use a participle to modify a noun. Prepositional phrases start with a preposition and end with a noun or pronoun, not with to plus a verb.