Answer:
The answer to your question would be that the verbal in the sentence is to eat and it is an infinitive.
Step-by-step explanation:
A verbal is a word derived from a verb that functions in a sentence as a noun or modifier rather than as a verb. Verbals include infinitives, gerunds, and participles. The difference between a verb and a verbal is that the latter is not inflected for person and tense. In this case, the verbal in question is an infinitve: To eat. Infinitives are verbals that can function as nouns, adjectives, or adverbs. To eat functions as an adverb.