Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
that I refer
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that I refer" is correct and usable in written English.
It can be used when you want to indicate a specific subject or topic that you are mentioning or discussing. Example: "In the report, I will clarify the data that I refer to in my analysis."
✓ Grammatically correct
News & Media
Science
Alternative expressions(7)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
48 human-written examples
To attest to that, I refer to the Quranic Verse: "If you give thanks, I will give you more".
News & Media
To answer that, I refer to Point No. 1 above.
News & Media
(And some, of course, will ask if there's really a climate problem to be solved. For that, I refer you to NASA and all major American scientific organizations).
News & Media
By that, I refer to my life routine -- from what I eat to what I drink (and don't drink -- alcohol!) to the eye drops and ointments that I insert, to the humidified rooms I inhabit, to the moisturizer and makeup I apply.
News & Media
He refused to give his name and insisted that I refer to him as Jan.
News & Media
The poem also contains a character that I refer to, in a rather ugly, dehumanizing way, as "a wandering tramp".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
10 human-written examples
Note that i refers to i-th row vector here.
We assume that zero means nothing, and so we have math; that "I" refers to oneself and that "he" refers to another, and so we have language.
News & Media
I've stuck to videos that I referred to in the article.
News & Media
That's the subject of the IMF paper that I referred to earlier.
News & Media
So I purchased another bike that I referred to as my "winter trainer", a 1950s Grandini with room for mudguards.
News & Media
Expert writing Tips
Best practice
When using "that I refer", ensure the reference is easily identifiable and accessible to your audience. Avoid ambiguity by providing enough context or a direct link to the referenced material.
Common error
Avoid using "that I refer" without a clear and easily identifiable referent. Ensure your audience knows exactly what you're referring to, otherwise, the phrase becomes meaningless and disrupts the flow of your writing.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that I refer" functions as a relative clause, specifically a defining relative clause, that modifies a noun or pronoun. It serves to specify or identify the particular item being referenced. As Ludwig AI indicates, the phrase is grammatically correct and usable.
Frequent in
News & Media
43%
Science
28%
Formal & Business
12%
Less common in
Encyclopedias
0%
Wiki
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "that I refer" is a grammatically sound and frequently used expression to connect a current statement to a previously mentioned subject. As Ludwig AI confirms, the phrase is correct and usable. Its neutral tone makes it appropriate for diverse contexts, including news, science, and business. To enhance clarity, ensure the reference is easily identifiable. While the phrase is widely accepted, consider alternatives like "that I mention" or "that I cite" for nuanced communication. Remembering this guidance ensures effective and coherent writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
that I mention
Focuses on the act of mentioning something, rather than referring to it in detail.
that I allude to
Implies a more indirect or subtle reference.
that I cite
Specifically indicates the act of quoting or referencing a source.
that I point out
Highlights the act of drawing attention to a specific detail or aspect.
that I indicate
Suggests a more general act of showing or pointing to something.
that I touch upon
Implies a brief or cursory mention of a topic.
that I address
Suggests a more direct and formal engagement with a topic.
that I discuss
Focuses on a more in-depth exploration of a topic.
that I elaborate on
Implies a more detailed and extensive explanation.
that I previously stated
Refers back to something the speaker has already said.
FAQs
What are some alternatives to "that I refer"?
Depending on the context, you can use alternatives such as "that I mention", "that I cite", or "that I allude to". The best choice depends on the specific nuance you want to convey.
How can I use "that I refer" effectively in a sentence?
To use "that I refer" effectively, make sure the reference is clear and specific. For example, "The study that I refer to earlier shows a correlation between exercise and mental health."
Is "that I refer" formal or informal?
"That I refer" is generally considered neutral and can be used in both formal and informal contexts. However, in very formal writing, you might consider more concise alternatives.
What's the difference between "that I refer" and "that I alluded to"?
"That I refer" indicates a direct reference, while "that I alluded to" suggests a more indirect or subtle hint. Choose the phrase that best reflects the explicitness of your reference.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested