To help you is my greatest desire.
Answer:
Noun
Explanation:
The italicized infinitive phrase is answering the question "What is my greatest desire?" That means the infinitive phrase is the subject of the sentence and is acting as a noun.
The function of the italicized infinitive phrase is the first choice, noun.
The function of the italicized infinitive phrase is Noun.
The italicized infinitive phrase is answering the question "What is my greatest desire?" That means the infinitive phrase is the subject of the sentence and is acting as a noun.
Therefore, the function of the italicized infinitive phrase is a noun.
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