Split Infinitives – Examples, Meaning & Problems

02/05/2023 Time to read: 4min

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Split infinitives are a common phenomenon in academic writing and the realm of language rules. An infinitive refers to the fundamental form of a verb, usually introduced by the word “to.” Split infinitives emerge when adverbials or adverbs are placed between “to” and the verb. It is widely argued that split infinitives pose grammatical errors, however, most style guides accept them. This article will define split infinitives and illustrate how they are used correctly in a sentence.

Split infinitives in a nutshell

A split infinitive occurs when an adverb is placed between “to” and the verb.

Definition: Split infinitives

An infinitive defines a verb in its uninflected form, e.g., “to do,” “to go,” “to say,” “to make,” etc. A split infinitive is a type of modifier — specifically a misplaced modifierthat occurs when an adverb or other word is inserted between “to” and the verb in an infinitive phrase. Although split infinitives are common in English and improve emphasis, some traditionalists frown upon their use since the infinitive is considered to be a single unit, and placing an adverb in between disrupts that unity.

Examples

  • She promised to never lie again.
  • To boldly go where no man has gone before. (Star Trek)
  • He wanted to quickly finish his homework.
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When to split an infinitive

Although traditional grammar rules once frowned upon split infinitives, modern usage has become more flexible. Below are the main reasons why you might choose to split an infinitive.

1️⃣Emphasis: If you want to give extra emphasis to a specific part of the action, splitting the infinitive can help, especially in creative writing or speeches.

2️⃣Clarity and flow: Sometimes a split infinitive can make a sentence easier to understand and more fluid. If that’s the case, it’s often better to split it.

3️⃣Informal usage: In contemporary English, especially in casual speech, split infinitives are widely accepted and often sound more natural.

Example

  • “She promised to never give up.”

“Never” placed between the infinitive phrase makes her promise sound more dramatic.

Example

  • “I want to clearly explain this.”

Without the split, “… to explain clearly this” sounds awkward.

Example

  • “She’s going to really enjoy it.”

“Really” after the verb would sound very unnatural.

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When not to split an infinitive

While split infinitives are acceptable in modern English, there are still times when avoiding them is the better choice. Here are some examples on when you should avoid split infinitives.

1️⃣Avoid ambiguity: If splitting the infinitive creates confusion, it’s best to avoid it. The placement of the adverb should be clear to the reader, and not muddle the intended meaning.

2️⃣Formal writing: In formal or academic writing, split infinitives are still often viewed as too casual or stylistically weak.

  • “He offered to more than double his donation.”

Does he want to increase it by more than double, or does he want to more than double it?

Better: “He offered to more than double his original donation.”

Better: “He offered to add more than double his original donation.”

  • “The committee voted to not approve the proposal.”

This feels clunky in formal contexts, where clarity is key.

Better: “The committee voted not to approve the proposal.”

FAQs

A split infinitive occurs when an adverb or other word is inserted between “to” and the verb in an infinitive form.

Example

  • “She decided to quickly finish her homework.”

In this case, “quickly” splits the infinitive “to finish.”

Splitting infinitives was considered grammatically incorrect by traditional grammar rules as some believed that it disrupted the natural flow. Nowadays, this rule is largely disregarded in favour of emphasis and clarity. While it’s not bad, it’s best to avoid splitting infinitives when it causes ambiguity or sounds awkward.

One of the most famous split infinitives comes from Star Trek:

  • To boldly go where no man has gone before.”

No, it’s not grammatically incorrect. While it’s a split infinitive, the structure in Star Trek is actually effective for adding emphasis- In formal writing, however, you should avoid splitting infinitives.

From

Melissa Gertschnig

 
About the author

Melissa Gertschnig works as a Content Manager for the English market at BachelorPrint. A love for languages and other cultures has led her to become a foreign language correspondence clerk, with a primary focus on English and Spanish. This gained her a high proficiency English level in listening, writing, and reading. During her training, Melissa had been awarded a Level 2 Pearson LCCI Certificate for Business English. While working full-time, she earned her certificate in Online Marketing, which ultimately led her to BachelorPrint, where she delivers professionally written and educational content for students and curious individuals all around the world.

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Bibliography

Gertschnig, M. (2023, May 02). Split Infinitives – Examples, Meaning & Problems. BachelorPrint. https://www.bachelorprint.com/uk/language-rules/split-infinitives/ (retrieved 11/08/2025)

In-text citation

Parenthetical
(Gertschnig , 2023)
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Gertschnig (2023)

Bibliography

Gertschnig, Melissa. 2023. "Split Infinitives – Examples, Meaning & Problems." BachelorPrint, Retrieved August 11, 2025. https://www.bachelorprint.com/uk/language-rules/split-infinitives/.

In-text citation

Parenthetical
(Gertschnig 2023)

Bibliography

Melissa Gertschnig, "Split Infinitives – Examples, Meaning & Problems," BachelorPrint, May 02, 2023, https://www.bachelorprint.com/uk/language-rules/split-infinitives/ (retrieved August 11, 2025).

Footnotes

Short note
Gertschnig, "Shortened title."

Bibliography

Gertschnig, Melissa: Split Infinitives – Examples, Meaning & Problems, in: BachelorPrint, 02/05/2023, [online] https://www.bachelorprint.com/uk/language-rules/split-infinitives/ (retrieved 11/08/2025).

Footnotes

Full note
Gertschnig, Melissa: Split Infinitives – Examples, Meaning & Problems, in: BachelorPrint, 02/05/2023, [online] https://www.bachelorprint.com/uk/language-rules/split-infinitives/ (retrieved 11/08/2025).
Direct quote
Gertschnig, 2023.
Indirect quote
Gertschnig, 2023.

Bibliography

Gertschnig, Melissa (2023): Split Infinitives – Examples, Meaning & Problems, in: BachelorPrint, [online] https://www.bachelorprint.com/uk/language-rules/split-infinitives/ (retrieved 11/08/2025).

In-text citation

Direct quote
(Gertschnig, 2023)
Indirect quote
(Gertschnig, 2023)
Narrative
Gertschnig (2023)

Bibliography

Gertschnig, Melissa. "Split Infinitives – Examples, Meaning & Problems." BachelorPrint, 02/05/2023, https://www.bachelorprint.com/uk/language-rules/split-infinitives/ (retrieved 11/08/2025).

In-text citation

Parenthetical
(Gertschnig)
Narrative
Gertschnig

Bibliography

Number. Gertschnig M. Split Infinitives – Examples, Meaning & Problems [Internet]. BachelorPrint. 2023 [cited 11/08/2025]. Available from: https://www.bachelorprint.com/uk/language-rules/split-infinitives/


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