Answer:
Infinitive Phrase
Step-by-step explanation:
An "Infinitive Phrase" is a phrase which acts together as an adjective, adverb, or noun as the result of combining an
infinitive with complements and modifiers.
An infinitive phrase usually begins with an infinitive which is combined with complements and modifiers. It can function as the actor(s) and complement(s). It can also function as direct object(s), or of the action or state expressed in the infinitive.
An example is:
"I have a books to sell before class".
The infinitive phrase modifying "books".
to sell (infinitive)