DictionaryinfinitiveBasic verb form
noun / adjective

infinitive

in-FIN-uh-tiv/ɪnˈfɪnətɪv/

A basic verb form that does not show tense, often used with “to” in English.

The phrase to run uses an infinitive without showing tense.

A plain classroom card displays ONLY the essential grammar example “to run” in small clear ink lettering; beside it a small naturally drawn runner illustrates the base verb.
Etymology

The “not limited” idea became a grammatical label: an infinitive is indefinite because it is not restricted by person or number. It expresses the verb’s general sense rather than specifying who performs it.

In context

getreallanguage16:02
english had a separate infinitive form unconjugated form with its own ending
Archaisms and Old Norse influence in English

More examples

  • After “can,” use an infinitive without “to,” as in “can sing.”
  • An infinitive phrase can act as the subject of a sentence.
  • The infinitives “to read” and “to write” both name actions.

Forms

infinitive · infinitives

infinitival adjective — Relating to an infinitive verb form.