adverbial participle vs converb

adverbial participle

noun
  • A participle that modifies a verb in same sentence and which is equivalent to an adverbial clause in English. Adverbial participles may denote time, condition, cause, concession, manner, means, purpose, or attendant circumstance. 

converb

noun
  • A non-finite verb form that serves to express adverbial subordination. 

  • A verb with a stressed, separable prefix. 

How often have the words adverbial participle and converb occurred in a corpus of books? (source: Google Ngram Viewer )