Writing & Editing Refresher course: ‘Into’ or ‘in to’? Want a lesson in the subtlety and the unbreakable, rigid forms of idiomatic usage in English? Consider the three little constructions: in, into , and in to. Then rejoice in the versatility of your language, or weep. By Denise C. BaronOct. 13, 2010 SHARE To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.