What does an infinitive verbal consist of?

An infinitive verbal is correctly described as beginning with "to" followed by the base form of a verb. This structure is distinctive because it expresses action or a state of being without showing tense. For example, in the phrase "to run," "to" is the marker, and "run" is the verb, together forming the infinitive phrase.

This construction allows infinitives to function in various roles within a sentence, such as a noun (e.g., "To swim is fun"), an adjective (e.g., "I have a book to read"), or an adverb (e.g., "She left to study"). Therefore, understanding that infinitives start with "to" and are followed by a verb is key to identifying and utilizing them properly in both writing and speech.