continuative vs durative

continuative

adj
  • Of or pertaining to continuation. 

  • durative. 

noun
  • a durative. 

  • Something that causes a continuation. 

durative

adj
  • Of or pertaining to duration. 

  • Of or pertaining to the aspect of a verb that expresses continuing action; continuative. Part of the imperfective aspect, as opposed to the perfective aspect, of verbs. 

  • Long-lasting. 

noun
  • This aspect, or a verb in this aspect; a continuative. 

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