What type of word can an infinitive typically act as in a sentence?

Infinitives are versatile verb forms that can function as nouns, adjectives, or adverbs within sentences. When an infinitive acts as a noun, it can serve as the subject or object of a verb (e.g., “To run is fun” or “I want to eat”). As an adjective, it can modify a noun, providing more information about it (e.g., “She has a car to drive”). Additionally, when functioning as an adverb, an infinitive can explain why someone does something or modify a verb (e.g., “He works hard to succeed”). This ability to take on multiple roles is what makes the infinitive an essential part of sentence construction in English.