Mainfinitive

A mainfinitive refers to the use of an infinitive verb form that functions as the main verb of a clause, rather than being subordinate to another verb. This construction is unusual in English and most other languages where infinitives typically serve a dependent role, often following a modal or auxiliary verb like "can" or "to want."

The mainfinitive is a feature primarily associated with the grammatical structure of certain commands or headlines, where it takes the place of a finite verb. For example, a public notice might read, "All personnel to report to the briefing room," with "to report" acting as the main verb of the instruction. This usage imparts a formal and direct tone, often used in official or military contexts. In headlines or titles, it can create a concise and impactful statement, such as "Local Team to Compete in Finals."

Some grammarians analyze this structure as an elliptical form, where the more conventional introductory verb like "are ordered" or "is scheduled" is omitted for brevity. While not part of standard conversational English, the mainfinitive construction remains a useful and recognizable feature in specific registers of written communication, valued for its clarity and conciseness. Its usage is generally restricted to contexts where the intended meaning is unambiguous.