On-going or Ongoing? (Helpful Examples) - Grammarhow Knowing whether “ongoing” is one or two words is important to help you master English This article will explore whether it’s hyphenated or whether you keep it as one word Once you’ve read all the rules here, you should have more luck with it On-going vs Ongoing “Ongoing” is the officially recognized spelling of the two We should use it in most cases because the hyphenated form