continuant vs in action

continuant

adj
  • Continuing; prolonged; sustained. 

noun
  • An endurant. 

  • A determinant formed from a tridiagonal matrix. 

  • A linguistic sound other than a stop. 

in action

adj
  • in action; actually proceeding; working; in force 

prep
  • In operation. 

  • In combat. 

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