Infinitive Phrases in English Grammar

Infinitive Phrases

Definition

• An infinitive phrase is a phrase that functions as a noun, adjective, or adverb in a sentence.
• It consists of an infinitive verb form (e.g., to run, to eat) and its complements (e.g., the ball, a sandwich).

Functions of Infinitive Phrases

• Subject: An infinitive phrase can function as the subject of a sentence.
  • Example: To eat a healthy diet is essential for good health.
• Object: An infinitive phrase can function as a direct object.
  • Example: I love to eat a sandwich for lunch.
• Adjective: An infinitive phrase can function as an adjective, modifying a noun or pronoun.
  • Example: The book to read is on the table.
• Adverb: An infinitive phrase can function as an adverb, modifying a verb, an adjective, or another adverb.
  • Example: I went to the store to buy milk.

Types of Infinitive Phrases

• Simple Infinitive Phrase: Consists of an infinitive verb form and its complements.
  • Example: to eat a sandwich
• Complex Infinitive Phrase: Consists of an infinitive verb form, its complements, and modifiers.
  • Example: to eat a sandwich at the party tonight

Identifying Infinitive Phrases

• Look for infinitive verb forms (e.g., to run, to eat) in a sentence.
• Identify the complements and modifiers of the infinitive verb form.
• Determine the function of the infinitive phrase in the sentence (subject, object, adjective, or adverb).