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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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in two occasions

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "in two occasions" is not correct in standard written English.
The correct expression is "on two occasions." Example: "I have visited that museum on two occasions, and each time was a unique experience."

⚠ May contain grammatical issues

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

15 human-written examples

Each subject visited at least in two occasions our laboratory.

Science

Plosone

In two occasions, two OTUs that were initially identified as distinct had very high sequence similarities, and were thus combined.

Science

Plosone

Of interest, the CSF protein levels that was >100 mg/dL in two occasions.

The TRPS modes are much sharper (narrower) compared to DLS and in two occasions fully resolved.

Science

ACS Nano

He was HIV-negative with normal CXR and there was no AFB in three consecutive (spot-early morning-spot) sputum samples (induced in two occasions).

However, due to the large intrasubject variability of insulin sensitivity (10), S ISP will likely change if the same meal is administered in two occasions to a subject.

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Human-verified similar examples from authoritative sources

Similar Expressions

45 human-written examples

Frankly, I think the connection will fail on more like one in four occasions.

News & Media

Independent

They have lost just once to the Roar in six occasions since.

On one in five occasions when a mobile user comes into contact with malware, it is via an online advert.

News & Media

BBC

Eighteen patients (20,7 %) suffered form hemorrhagic complications that, in 13 cases, where puncture site hematomas and, in six occasions (6,9%%) required an early interruption of the treatment.

To investigate whether the teacher inventory was effective in detecting teacher competences in tracking competence developments, the researcher asked the teachers to write teacher portfolios in three occasions of the beginning, middle, and end of the semester.

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Expert writing Tips

Best practice

Use the correct preposition and say "on two occasions" instead of "in two occasions". This will make your writing grammatically sound and more professional.

Common error

Avoid using "in" when referring to specific occasions. "On" is the correct preposition to use, for example, “The event occurred on two occasions”.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

82%

Authority and reliability

2.8/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "in two occasions" functions as an adverbial phrase, attempting to specify the frequency or circumstances of an event. Although intended to modify a verb or clause by indicating when something happened, it is grammatically incorrect. Ludwig AI confirms the correct usage is "on two occasions".

Expression frequency: Common

Frequent in

Science

50%

News & Media

32%

Formal & Business

18%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, while the phrase "in two occasions" is frequently encountered, it is grammatically incorrect. The correct preposition to use is "on", making "on two occasions" the standard and preferred form. As Ludwig AI points out, accuracy in prepositional usage enhances clarity and credibility, particularly in formal writing. Remember to replace "in two occasions" with "on two occasions", "twice", or a similar alternative to ensure your writing is grammatically sound.

FAQs

What is the correct way to say "in two occasions"?

The correct way to express "in two occasions" is to use the preposition "on". Therefore, the correct phrase is "on two occasions".

What can I say instead of "in two occasions"?

You can use alternatives like "on two occasions", "twice", or "in two instances" depending on the context.

Which is correct, "in two occasions" or "on two occasions"?

"On two occasions" is the grammatically correct phrase. "In two occasions" is considered incorrect.

Is "in two occasions" ever acceptable?

While "in two occasions" might be understood, it is not considered standard English. It's best to use "on two occasions" to ensure clarity and grammatical accuracy.

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Source & Trust

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Authority and reliability

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Expert rating

Real-world application tested

Most frequent sentences: