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
of a such
Grammar usage guide and real-world examplesUSAGE SUMMARY
'of a such' is not proper English.
Instead, you could use 'such a' in written English. For example, "Such a wonderful day!".
⚠ May contain grammatical issues
News & Media
Science
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
60 human-written examples
He feared the tyranny of a such an organization, he wrote in The Atlantic Monthly.
News & Media
The chances of a such a signal being a random fluke is less than one in 3 million.
News & Media
Other makers began to consider the virtues of a such a modern, high-output engine in a cruiser.
News & Media
In Westchester County, establishment of a such a body in 1970 is widely credited as a big reason that government is now in good financial shape.
News & Media
Long-standing Brummie death-metallers Benediction didn't freeze in front of a such a large crowd, but unfortunately the same couldn't be said for Discharge.
News & Media
In sub-Saharan Africa, where 20m households live off-grid, the possibilities of a such a bottom-up approach are endless.
News & Media
Dan Yakir, legal adviser to the Association for Civil Rights in Israel, said that in an informal hearing two years ago, Justice Barak fretted about the "unforeseen ramifications" of a such a decision.
News & Media
There is no intelligence of an imminent gun attack on Britain, but the two-day exercise in London this week will test how police, the emergency services and government would cope with the intense strain of a such an event.
News & Media
On March 12, with the hope of a such a resolution fading, Admiral Sir Michael Boyce, chief of defence staff, asked the prime minister for an unequivocal statement on the legality of war under resolution 1441.
News & Media
Given the redundancy here, the true definition of a such a clause has been explained by the Delaware courts, the place where any dispute over the Yahoo deal will be litigated.
News & Media
It names the entirety of Provincetown as a Formula Business Regulated District, and then lays out the defining characteristics of a such a business, which must be one of 10 or more branches worldwide.
News & Media
Expert writing Tips
Best practice
Avoid using the phrase "of a such" in formal writing. Instead, use "such a" followed by a noun to ensure grammatical correctness and clarity. For example, use "such a problem" instead of "of a such problem".
Common error
A common mistake is adding the preposition "of" before "a such". This violates standard English grammar rules. Always remember that "such" acts as a determiner and directly modifies the noun.
Source & Trust
83%
Authority and reliability
2.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "of a such" functions incorrectly as a prepositional phrase intended to modify a noun. Ludwig AI indicates that the phrase is grammatically incorrect, despite its presence in a number of sources.
Frequent in
Science
0%
News & Media
0%
Formal & Business
0%
Less common in
Science
0%
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
The phrase "of a such" is frequently encountered, as shown by Ludwig's examples, yet it is grammatically incorrect. The correct form is "such a". Despite its prevalence across various sources, including news and scientific articles, it's essential to avoid "of a such" in formal writing. Ludwig AI identifies this error, and writers should favor grammatically sound alternatives to ensure clarity and precision in their communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
such a
Reverses the order and removes the unnecessary preposition to form a correct phrase.
of such
Emphasizes the characteristic or quality being described, typically followed by a noun.
like this
Uses a simpler demonstrative to refer to something previously mentioned.
of this kind
Indicates a type or category of something.
of this sort
Similar to "of this kind" but may imply a more casual or informal context.
of a similar nature
Focuses on the shared characteristics between items.
of an equivalent type
Emphasizes that the items are functionally the same.
of that nature
Uses a more formal tone to refer to a characteristic.
of that variety
Indicates a specific subset within a larger category.
of that class
Refers to a group of items sharing common attributes.
FAQs
How can I correct the phrase "of a such" in my writing?
Replace "of a such" with "such a" followed by a noun. For example, change "of a such problem" to "such a problem".
What does "of a such" mean, and why is it incorrect?
While "of a such" is often intended to emphasize a particular characteristic or quality, it doesn't conform to standard English grammar. The correct construction is "such a", which serves the same purpose.
Are there contexts where "of a such" is considered acceptable?
No, "of a such" is generally considered grammatically incorrect in all formal and informal writing contexts. It is always recommended to use the corrected form, "such a".
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
2.1/5
Expert rating
Real-world application tested