perfect tense vs perfectus

perfect tense

noun
  • Often, specifically, the present perfect tense as distinguished from the past perfect and future perfect tenses. 

  • A verb form indicating that an action or state has been completed at the present time, in the past, or shall be completed in the future. 

perfectus

noun
  • Synonym of perfect (“leader of the Cathar movement”) 

How often have the words perfect tense and perfectus occurred in a corpus of books? (source: Google Ngram Viewer )