bitching vs perfective

bitching

adj
  • Excellent; outstanding. 

  • Awful, terrible. 

noun
  • A spiteful criticism or complaint. 

perfective

adj
  • Of, or relative to, the perfect tense or perfective aspect. 

noun
  • a perfective verb form 

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