Decide Not To or Decide To Not Which Is Correct? shows how both forms appear in use now in speech now here. In everyday English, people often notice these two patterns and feel unsure about which one is actually better or more natural in writing and speaking.
Therefore, in everyday speech, we very likely come across both expressions decide to not and Decide not to, and people often think it is a problem when they try to decide which of them is correct for a clear article. In normal communication, we examine how you can use these expressions, and we offer simple explanations on how they are used in speech that is both natural and correct. This shows how language is flexible and shaped by real usage rather than strict rules alone.
It feels like a communication circus, where words juggle like balls every day, and sometimes they exactly land where we intend, but other times not so much. It’s all part of the game of language until we bump into phrases that make us stop and think.
One such puzzle is deciding between to not and decide to not, they’re tiny words but they do pack a punch in sentences, and both forms feel interchangeable when we use them in real speech. In practice, both versions can appear in natural conversation without causing confusion.
There was once a rule against placing another adverb between to and a verb, for example it was wrong to say decide to not. However, that rule is now outdated and no longer applies in modern speech, so it is not a problem anymore to use either form depending on what feels correct. Today, usage is guided more by clarity and style rather than old grammatical restrictions, making both forms acceptable in most contexts.
Quick Answer:
When you look at formal grammar rules, the answer becomes very straightforward.
Correct Form: Decide Not To
The standard and widely accepted structure is:
decide + not + to + verb
Examples:
- I decided not to attend the meeting.
- She decided not to continue the project.
- They decided not to invest in the company.
This structure dominates academic writing, professional communication, journalism, and edited publications.
It reads clean. It flows naturally. It aligns with how English organizes negation.
Why “Decide Not To” Works So Well
The phrase works because of how English handles infinitives.
In the structure “to + verb,” the word “to” introduces an action:
- to go
- to eat
- to leave
When you add “not” before the infinitive, it cleanly negates the action:
- not to go
- not to eat
- not to leave
This placement preserves rhythm and clarity. The sentence doesn’t feel interrupted or rearranged.
Think of it like closing a door before entering a room. The order feels logical and smooth.
Decide To Not: Is It Ever Correct or Acceptable?
Now here’s where things get interesting. Many native speakers use “decide to not” in casual conversation.
So, is it wrong?
Technically: It is not grammatically incorrect
You will hear:
- I decided to not go.
- She decided to not respond.
These sentences communicate meaning clearly. No confusion exists.
However, the issue is not grammar correctness alone. It is about style, flow, and expectation.
Why It Sounds Awkward in Formal English
Even though it is understandable, “decide to not” often feels slightly off in formal writing.
Here’s why:
- It splits the natural rhythm of the infinitive phrase
- It places emphasis on “not,” which feels heavy
- It breaks traditional structure expectations in edited English
Most style guides prefer the smoother alternative because readers expect it.
Think of It Like This
Imagine you are assembling a sentence like building a Lego structure.
- “Decide not to go” = clean, aligned blocks
- “Decide to not go” = same blocks but slightly shifted out of place
Both hold together. Only one feels polished.
Grammar Breakdown of “Decide Not To or Decide To Not – Which Is Correct?”
To really understand the difference, we need to zoom in on structure.
Basic Sentence Structure Comparison
| Structure | Example Sentence | Naturalness Level |
| decide not to + verb | I decided not to leave early | Very natural |
| decide to not + verb | I decided to not leave early | Acceptable but less smooth |
The meaning does not change. Only the rhythm and style do.
What’s Happening Grammatically
Let’s break it into parts:
- decide → main verb (action of making a choice)
- to leave → infinitive (the action considered)
- not → negation marker
In standard grammar flow:
“not” modifies the infinitive directly
So the structure becomes:
decide + [not to + verb]
In the alternative structure:
decide + [to + not + verb]
Both are logically understandable, but the second disrupts conventional placement.
Style Guide Perspective on Decide Not To or Decide To Not
Different writing contexts treat this choice differently.
Formal Writing (Essays, Exams, Business Reports)
Always prefer:
- decide not to
Why?
- It matches academic expectations
- It avoids stylistic debate
- It reads clean and professional
In exams or professional writing, this choice can subtly influence perception of fluency.
Informal Writing and Speech
In everyday conversation:
- “decide to not” appears naturally
- It often adds emphasis to “not”
For example:
I decided to not go because I felt tired.
This can sound more emotional or conversational, depending on tone.
Read More: Negligence vs. Neglect: Difference Explained With Examples
Real-World Usage Examples of Decide Not To or Decide To Not
Let’s ground this in real-life style.
Correct and Preferred Usage
- The manager decided not to approve the request.
- I decided not to reply to the email.
- She decided not to attend the ceremony.
These sentences appear in:
- News articles
- Academic papers
- Business reports
Less Preferred but Common Usage
- I decided to not reply to the email.
- He decided to not participate in the event.
These are:
- More conversational
- Common in spoken English
- Less common in edited writing
Common Mistakes Writers Make With Decide Not To or Decide To Not
Many learners repeat the same errors without realizing it.
Mistake: Assuming Both Are Equal in Formal Writing
Not all correct forms are equally appropriate.
- Both are understandable
- Only one is preferred in formal contexts
Mistake: Overusing “to not” for Emphasis
Some writers think:
“to not” sounds stronger
In reality, it often just sounds heavier, not clearer.
Mistake: Ignoring Sentence Flow
English prefers smooth rhythm. Word placement affects that rhythm more than people expect.
Quick Rule to Remember for Decide Not To or Decide To Not
Here’s the simplest way to lock it in:
If you are writing anything formal, use decide not to.
If you are speaking casually, you might hear both.
Short. Clear. Reliable.
Why This Confusion Exists in English Grammar
This confusion didn’t appear randomly. It comes from how language evolves.
Influence of Spoken English
People naturally emphasize words differently in speech. That influence often spills into writing.
Regional Variation
Different English dialects handle word order more flexibly. American conversational English especially tolerates “to not.”
Digital Communication Impact
Social media changed grammar expectations:
- faster writing
- relaxed structure
- emphasis over precision
Because of this, variations like “to not” became more visible.
Case Study: How Editors Handle Decide Not To or Decide To Not
Professional editors almost always choose consistency over variation.
Example Editing Scenario
Original sentence:
The committee decided to not delay the project.
Edited version:
The committee decided not to delay the project.
Why editors change it
- Improves flow
- Matches publication standards
- Reduces stylistic friction
Even when meaning is identical, readability wins.
Expert Insight on Decide Not To or Decide To Not
Linguists often describe this difference as a stylistic preference rather than a strict rule violation.
A common observation in grammar references is:
“English tends to place negation before infinitives for smoother rhythm and clarity.”
This preference has been reinforced through centuries of written standardization.
Quick Comparison Table
| Factor | Decide Not To | Decide To Not |
| Grammar correctness | Correct | Correct |
| Formal writing | Preferred | Avoided |
| Spoken English | Common | Common |
| Readability | High | Moderate |
| Style guides approval | Strong | Weak |
FAQs
1. Is “decide not to” correct in English?
Yes, decide not to is fully correct and widely used in both formal and informal English.
2. Is “decide to not” grammatically wrong?
No, decide to not is not wrong. It is also correct, but slightly less common in formal writing.
3. Which form is more natural?
Most native speakers prefer decide not to because it sounds smoother and more traditional.
4. Can I use both expressions interchangeably?
Yes, both decide not to and decide to not can be used interchangeably in modern English.
5. Why do two correct forms exist?
Because English allows flexibility in word order, especially with adverbs like not.
6. Is “decide to not” formal or informal?
It is generally considered more informal compared to decide not to.
7. Did grammar rules change over time?
Yes, older rules discouraged splitting to + verb, but modern English no longer strictly follows that rule.
8. Which one should I use in exams?
It is safer to use decide not to in exams, as it is more commonly accepted in formal writing.
9. Do native speakers use “decide to not” in speech?
Yes, many native speakers use decide to not in casual conversation without any issue.
10. Does meaning change between the two forms?
No, both expressions have the same meaning and only differ slightly in style and tone.
Conclusion
After teaching English for many years, I’ve noticed that learners often assume small word-order differences signal a major grammar rule. In reality, “decide not to” and “decide to not” express the same meaning, but they differ in style rather than correctness.
For academic writing, professional emails, business documents, and exams, “decide not to” remains the safest and most natural choice because it follows the standard pattern used by editors and respected style guides. “Decide to not” is also grammatically acceptable and appears frequently in everyday conversation, where speakers may use it for emphasis or a more conversational rhythm.
The best approach is simple: match your wording to your audience. If you want polished, formal English, choose “decide not to.” If you’re writing informally or reflecting natural speech, “decide to not” is perfectly understandable. Mastering these subtle differences helps you write with greater confidence, clarity, and fluency one of the key steps toward sounding like a proficient English speaker.
Shafiq Ur Rehman is an English language educator, editor, and grammar writer with over 10 years of teaching experience in English and Mathematics across various educational institutions. As an editor at Grammar Glint, he creates clear, accurate, and easy-to-understand content on English grammar, spelling, punctuation, word meanings, idioms, and common usage questions.
Drawing on years of classroom experience, Shafiq focuses on explaining grammar rules in simple language with practical examples that help students, teachers, writers, and English learners build confidence in their communication. His goal is to publish trustworthy, well-researched, and reader-friendly content that makes learning English easier for everyone.
