Underline infinitive phrase and how is it used
A few prospectors brave enough to explore the frozen interior found gold in the summer of 1896.
To explore the frozen interior adj
Correct.
Your identification of the infinitive phrase is correct, but it's not being used as an adjective.
The word immediately before the infinitive phrase (enough) is what part of speech. What kinds of words or phrases can modify this?
http://grammar.ccc.commnet.edu/grammar/phrases.htm#infinitive
Oops. Writeacher is correct. I missed the part of speech. Still not quite awake here yet.
To find the infinitive phrase in the given sentence "A few prospectors brave enough to explore the frozen interior found gold in the summer of 1896," you need to identify the word that starts with "to." In this case, the infinitive phrase is "to explore the frozen interior."
An infinitive phrase is a verbal phrase that begins with the word "to" followed by the base form of a verb (in this case, "explore"). It can function as a noun, an adjective, or an adverb in a sentence.
In the given sentence, the infinitive phrase "to explore the frozen interior" functions as an adjective. It describes the prospectors, indicating that they were brave enough for the specific purpose of exploring the frozen interior.
To summarize, the infinitive phrase "to explore the frozen interior" is used in the sentence to describe the prospectors and their bravery.