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
I can once
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "I can once" is not correct and does not convey a clear meaning in written English.
It is unclear when to use it, as it lacks context and grammatical structure. Example: "I can once remember a time when..."
⚠ May contain grammatical issues
News & Media
Science & Research
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
10 human-written examples
Even with the disbanding of this office, it will be many years before I can once again trust my government.
News & Media
He adds, "Today, thank God, I can once again eat food that is poorly prepared or that I do not like".
News & Media
Maybe one day, when the outer world recedes to a place that I don't participate in, then I can once again open the trunk with all the diaries in it.
News & Media
Nick Perry Parliamentary spokesperson, Hastings and Rye Lib Dems ���As an ex-Labour member I have been waiting for the moment when I feel I can once more rejoin the party.
News & Media
Mr. David said in a statement: "After much soul searching — and by the way, it was nowhere to be found — I have decided to do another season of 'Curb.' I look forward to the end of shooting, when I can once again resume the hunt for my elusive soul.
News & Media
On the one hand I can once again build up a new organisation and on the other I can fully devote myself to communication activities.
Science & Research
Human-verified similar examples from authoritative sources
Similar Expressions
49 human-written examples
"I can only once remember going round with a portfolio, which was such a humiliating experience".
News & Media
These bouquets will carry through the coming months until I can once again rush out to plant pansies in their place.
News & Media
There is a pause button I can press once, I have just discovered by pressing it.
News & Media
"I like to protect Moira from the limelight as much as I can," Alex Salmond once said.
News & Media
"Part of my job is to have the most evasive schedule I can," he once said.
News & Media
Expert writing Tips
Best practice
Avoid using the phrase "I can once" in formal writing due to its lack of clarity and grammatical correctness. Instead, opt for clearer alternatives like "I remember once" or "I was once able to" to convey your intended meaning more effectively.
Common error
Do not assume "I can once" is interchangeable with phrases like "I could once" or "I remember once". The original phrase is grammatically unsound and can confuse your readers. Choose a structure that clearly conveys past ability or recollection.
Source & Trust
88%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "I can once" is an attempt to express a past ability or recollection, but it grammatically incorrect. Ludwig AI indicates it does not convey a clear meaning in written English. The intended meaning is usually better conveyed using alternatives like "I once could" or "I remember once".
Frequent in
News & Media
68%
Science
16%
Wiki
6%
Less common in
Formal & Business
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "I can once" is grammatically questionable and lacks clarity in written English, as indicated by Ludwig AI. While it appears occasionally in informal contexts such as news articles and online forums, it's best to avoid it in formal writing. Consider alternatives like "I remember once" or "I once could" to more effectively convey your intended meaning. The phrase's low expert rating reflects its grammatical issues and inconsistent usage. To maintain clarity and credibility, choose grammatically sound alternatives. Remember that while understanding incorrect phrases is helpful for comprehension, using correct grammar is crucial for clear communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
I once could
Changes the auxiliary verb to express a past ability or possibility.
I was once able to
Emphasizes a past capability or opportunity.
I remember once
Shifts the focus to a memory of a past event or experience.
On one occasion I could
Highlights a specific instance where a capability existed.
There was a time I could
Expresses a past ability that may no longer be present.
I had the ability to once
Rephrases to emphasize having a specific capability at a prior time.
I am able to once
Expresses present capability, sounding non-idiomatic.
I could on one occasion
Expresses a past capability in a less common word order.
One time I was able to
Uses a more colloquial way of expressing past capability.
Previously, I was able to
Indicates a past ability using a more formal adverb.
FAQs
How can I rephrase "I can once" to sound more natural?
Instead of "I can once", you can use phrases like "I remember once", "I once could", or "I was once able to depending on the context".
Is the phrase "I can once" grammatically correct?
The phrase "I can once" is generally considered grammatically incorrect. It's better to use alternative phrasing such as "I once could" or "I remember once" for clarity.
What is a more formal way to express the idea behind "I can once"?
A more formal way to express the idea would be "I was once able to" or "I recall an instance when I could". These alternatives provide clarity and maintain a professional tone.
In what contexts might I see the phrase "I can once" used?
While not grammatically correct, you might encounter "I can once" in informal speech or writing. However, it's advisable to avoid using it in formal or professional contexts. Stick to clearer alternatives such as "I remember once" or "I used to be able to".
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
88%
Authority and reliability
2.8/5
Expert rating
Real-world application tested