get after vs lecture

get after

verb
  • To attempt to convince another to move into action. 

  • To move into action in pursuit of something. 

  • To move into action in attempt to catch or defeat another. 

lecture

verb
  • To preach, to berate, to scold. 

  • To teach (somebody) by giving a speech on a given topic. 

noun
  • a class that primarily consists of a (weekly or other regularly held) lecture (as in sense 1) 

  • A berating or scolding. 

  • A spoken lesson or exposition, usually delivered to a group. 

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