***** NOT A TEACHER *****
Hello, Mawes:
Here is some information that may interest you. It comes from two of my favorite books.
1.. Infinitive phrase as a modifier of a noun: Darius Green's attempt to fly proved a failure.
2. Infinitive phrase as a modifier of an adjective : She is difficult to please.
3. Infinitive phrase as a modifier of an adverb: They arrived too late to catch the train.
a. Some books say that "to catch a train" modifies the adverb "late."
b. Some books say that "to catch a train" modifies the adverb "too."
Sources: House and Harman, Descriptive English Grammar (Copyright 1931 and 1950), Second Edition, pages 330 - 332. / Pence and Emery, A Grammar of Every-Day English (Copyright 1947 and 1963), Second Edition, pages 68 -69.