Is It Okay to Split an Infinitive?

a background of tropical leaves with the words on top: split infinitives

If you think back to your eleventh-grade English class, or if you’ve ever gone toe-to-toe with a pedantic member of the grammar police, you’ve probably heard that it’s not okay to split an infinitive.

Remember that an infinitive is a verb in its most basic form, with the word to and then the verb, such as

  • to love
  • to sleep
  • to play

A split infinitive is when an adverb is inserted between to and the verb. The most famous example comes from the opening to the original Star Trek TV series:

“to boldly go where no man has gone before”

Notice that boldly goes between to and go, thus splitting it. Here are some more examples of split infinitives:

  • to quickly write
  • to happily read
  • to frankly say


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Why do people think splitting infinitives is bad?
Basically, some people think it’s inelegant. This idea was made popular by Henry Alford, the dean of Canterbury, who, in 1864, said people shouldn’t do it because, ahem, they already weren’t doing it very often. He wrote in his book, The Queen’s English: “. . . this practice is entirely unknown to English speakers and writers.”

But that’s not true. Lord Byron used split infinitives before the dean even wrote his book, as did Thomas Cromwell, Daniel Defoe, Benjamin Franklin, and many others. But somehow having Alford proclaim this made split infinitives a taboo.

However, split infinitives are natural in our everyday speech. You’ve probably already spoken multiple split infinitives today without even realizing it. And, over the years, authorities on the English language have relaxed their view.

In 2019, the Associated Press Stylebook came out and said using the split infinitive can actually make sentences easier to read and can better convey meaning, reversing its previous suggestion on the matter. So, it’s okay to split infinitives if it makes your message clearer or if it sounds more natural.

Now I want you to go boldly forth and split away!

Erin Servais is the founder of Dot and Dash, LLC, an author-services company focusing on women writers and offering a range of editing, coaching, and social media packages.

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3 thoughts on “Is It Okay to Split an Infinitive?

  1. The interesting question to me is not the permissibility, elegance or lack of either in the so called split infinitive but rather, how English got to use the linking preposition “to” in most uses of it. My thought, inspired only by some knowledge of Romance languages and German is that it originates in the fact that English, unlike these other tongues has no distinctive ending for the infinitive analogous to the German “en”, the French “er”, “ir” and “re” or the Italian “are”, “ere”, and “ire”. At some point along its developmental course from a Germanic language, verbal infinitive endings got shorn away but some substitute fr them was found necessary. Does this conjecture have any basis in fact?


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