ongoing vs simple present

ongoing

noun
  • Something that is going on; a happening. 

adj
  • Continuing, permanent, lasting. 

  • Presently or currently happening; being in progress. 

simple present

noun
  • The present tense; a verb or sentence in this tense. 

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