infinitival

/ˌɪnfɪnɪˈtaɪvəl/
adjective
  1. Relating to or functioning as an infinitive (the base form of a verb, usually preceded by 'to').
    • Some verbs, like 'help,' can be followed by an infinitival phrase without 'to.'
    • In the sentence 'I want to go,' the phrase 'to go' has an infinitival structure.
    • The teacher explained the infinitival clause in the grammar lesson.