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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
could have stumbled
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "could have stumbled" is correct and usable in written English.
It can be used to express a possibility or hypothetical situation in the past where someone might have tripped or made a mistake. Example: "He was so distracted that he could have stumbled over the curb without even noticing."
✓ Grammatically correct
News & Media
Science & Research
Alternative expressions(2)
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
5 human-written examples
He acknowledged he had worried that Mr. Bush could have stumbled or done something to damage his prospects.
News & Media
Avert your gaze from the gaping holes in the reactor walls and you could have stumbled upon an unwieldy building site.
News & Media
One of the hardest things to explain might be how he could have stumbled in Russia, after having spent five years in Moscow running the TNK-BP joint venture from 2003 to 2008.
News & Media
Some of those patients now say they feel betrayed by the company they once viewed as their savior, wondering why Genzyme did not have a sufficient reserve of such vital drugs and how the company could have stumbled so badly in trying to fix its production problems.
News & Media
Still, says Noever, "Allais could have stumbled onto something important".
Science & Research
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
At Christie's, Franz Marc's very large "Springende Pferde" (Jumping Horses) painted in 1910 could easily have stumbled over the double hurdle of its uncharacteristically pale color scheme and its curious throwback to Divisionist brushwork.
News & Media
Could I have stumbled upon one of the key reasons why people don't attain their goals?
News & Media
The Saints-Giants game got out of hand, so a little channel surfing could be excused, and you might have stumbled upon this clip (at top, and about a month old) on another ESPN channel.
News & Media
In offering its subscribers the free option to block pop-up ads, EarthLink may have stumbled onto something that could reignite its flagging dial-up subscriber growth.
News & Media
The other tablet entrants have stumbled so far, and that trend-line could persist deep into 2012.
News & Media
Commercial opportunities might follow: Britain could import waste gas from northern Europe, where pilot CCS projects have stumbled because of opposition to onshore stores.
News & Media
Expert writing Tips
Best practice
Use "could have stumbled" to express a hypothetical past event where someone nearly failed or made a mistake. It's particularly effective when emphasizing the potential consequences that were avoided.
Common error
Avoid using "could have stumbled" when describing a definite past event. This phrase indicates possibility, not certainty. If the person definitively stumbled, use "stumbled" instead.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "could have stumbled" functions as a modal verb phrase expressing a hypothetical or potential past action. It indicates that an event (stumbling) was possible but not certain. Ludwig confirms that this phrase is grammatically correct and usable.
Frequent in
News & Media
50%
Science
30%
Formal & Business
10%
Less common in
Academia
5%
Encyclopedias
3%
Wiki
2%
Ludwig's WRAP-UP
The phrase "could have stumbled" is a grammatically sound modal verb phrase used to express a hypothetical past event or a near miss. Ludwig confirms its correctness and usability in various contexts. It appears most frequently in News & Media and Science domains. Alternatives include "might have tripped" and "may have fallen". When using this phrase, ensure it accurately conveys the intended possibility and avoid using it to describe definite past events. Be cautious of the incorrect form "could of stumbled". Overall, "could have stumbled" is a useful tool for nuanced expression in both formal and informal settings.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
might have tripped
Replaces "could" with "might", indicating a slightly lower degree of possibility.
may have fallen
Substitutes "could" with "may" and "stumbled" with "fallen", suggesting a potential but uncertain event.
could have erred
Replaces "stumbled" with "erred", shifting the meaning to a mistake or error rather than a physical stumble.
might have faltered
Uses "faltered" instead of "stumbled", implying a loss of strength or momentum.
could have made a mistake
Replaces "stumbled" with a more explicit expression of making an error.
nearly tripped
Focuses on the near miss of tripping, rather than a definite stumble.
almost fallen
Similar to "nearly tripped" but emphasizes the potential for a fall.
came close to failing
Shifts the context to a potential failure rather than a physical stumble.
was on the verge of tripping
Emphasizes the imminence of a potential trip or stumble.
risked a misstep
Highlights the risk of making a mistake or misstep.
FAQs
How can I use "could have stumbled" in a sentence?
Use "could have stumbled" to express a past possibility that something went wrong or someone made a mistake. For example, "He was so tired he "could have stumbled" on the stairs."
What are some alternatives to "could have stumbled"?
Alternatives include "might have tripped", "may have fallen", or "could have erred", depending on the specific context you want to convey.
Is "could of stumbled" grammatically correct?
No, "could of stumbled" is incorrect. The correct form is "could have stumbled". "Have" is often contracted to "'ve" in speech, which can lead to the confusion.
What's the difference between "could have stumbled" and "stumbled"?
"Could have stumbled" implies a possibility that someone almost stumbled but didn't necessarily fall, while "stumbled" indicates that the person actually tripped or faltered.
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested