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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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in in

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "in in" is not correct and usable in written English.
You cannot use this phrase as a stand-alone sentence, and it should not be used in any context. An example of incorrect usage would be, "I would like to go in in the morning."

⚠ May contain grammatical issues

News & Media

Wiki

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

56 human-written examples

Remember the "i" in "in other words".

Yours is phased in in eight years.

News & Media

The New York Times

The tax would kick in in 2012.

News & Media

Forbes

We would tune in in a heartbeat. .

News & Media

Huffington Post

Weigh in in the comments.

News & Media

The New York Times

He comes in in 69.

News & Media

The New Yorker

Check in in two hours.

News & Media

The New Yorker
Show more...

Human-verified similar examples from authoritative sources

Similar Expressions

4 human-written examples

I don't believe in in-between".

Take active participation in in-house trainings.

Formal & Business

Cover Letter

The Kiss-In in front of La Moneda:.

News & Media

The New York Times

They staged another bed-in in Toronto.

News & Media

The New Yorker

Expert writing Tips

Best practice

Avoid using the phrase "in in" in formal writing. It is generally considered grammatically incorrect. Instead, revise your sentence to use a single, appropriate preposition or rephrase for clarity.

Common error

A common mistake is repeating the preposition "in" unnecessarily. Double-check your sentences to ensure you're not being redundant. If you find yourself using "in in", consider whether a different preposition or rephrasing would make the sentence clearer.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

81%

Authority and reliability

1.8/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "in in" typically doesn't serve a valid grammatical function. Based on Ludwig AI's analysis, it's flagged as incorrect. The individual word "in" functions as a preposition, but its repetition doesn't add meaning or grammatical correctness to most sentences.

Expression frequency: Common

Frequent in

News & Media

35%

Wiki

25%

Formal & Business

20%

Less common in

Science

10%

Encyclopedias

5%

Reference

5%

Ludwig's WRAP-UP

In summary, the phrase "in in" is generally considered grammatically incorrect and should be avoided in formal writing. Ludwig AI flags it as such, and while it appears in various sources, its usage often stems from direct quotes, informal contexts, or unintentional errors. For clarity and correctness, it's best to rephrase sentences using alternative prepositions or restructuring the sentence entirely. While it occurs with a “Common” frequency, this is more reflective of errors or informal speech rather than accepted usage. Always strive for precision and grammatical accuracy in your writing by avoiding this redundant construction.

FAQs

Is it ever correct to use the phrase "in in"?

Generally, no. The phrase "in in" is usually grammatically incorrect and indicates redundancy. It is advisable to rephrase the sentence for clarity and correctness.

How can I avoid using "in in" in my writing?

Review your sentences carefully and identify instances where you might be tempted to use "in in". Consider using alternative prepositions such as "within" or "inside of", or restructure the sentence to eliminate the need for the double "in".

What are some common prepositions that can replace "in"?

Depending on the context, you can use prepositions such as "at", "on", "inside", "within", or "during" to convey the intended meaning more effectively.

What should I do if I'm unsure whether to use "in in"?

If you're uncertain, it's best to err on the side of caution and rephrase the sentence. Consult a grammar guide or seek feedback from a proficient writer to ensure your sentence is grammatically sound and clear.

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Source & Trust

81%

Authority and reliability

1.8/5

Expert rating

Real-world application tested

Most frequent sentences: