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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
that could happen
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that could happen" is correct and usable in written English.
It can be used to express a possibility or likelihood of an event occurring in the future. Example: "There are many factors to consider, and while we hope for the best, we must acknowledge that that could happen."
✓ Grammatically correct
News & Media
Wiki
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
The worst that could happen?
News & Media
"It's the worst that could happen".
News & Media
There are two ways that could happen.
News & Media
What the worst that could happen?
News & Media
Here's one way that could happen.
News & Media
What's the worst that could happen?
News & Media
The worst that could happen had happened.
News & Media
What is the worst that could happen?
News & Media
Here are four ways that could happen.
News & Media
In principle, that could happen at n = 32.
Science
What's the worse that could happen?
Wiki
Expert writing Tips
Best practice
Use "that could happen" to introduce potential consequences or possibilities in a discussion. It's effective for both formal and informal settings, lending a sense of realism and acknowledgement of uncertainty.
Common error
Avoid using "that could happen" excessively in situations demanding concrete plans or assurances. Overuse can dilute the impact and suggest a lack of decisiveness.
Source & Trust
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that could happen" functions as a clause expressing possibility or potentiality. As Ludwig AI confirms, it is a grammatically correct and commonly used expression. The examples show its use in various contexts to introduce potential outcomes.
Frequent in
News & Media
47%
Wiki
22%
Science
6%
Less common in
Formal & Business
11%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "that could happen" is a versatile phrase used to express possibility or potentiality across a range of contexts. As Ludwig AI states, the phrase is grammatically correct and suitable for both formal and informal settings. While frequently used in news and media, it's important to use it judiciously, avoiding overuse in situations requiring certainty. Related phrases like "it is possible" or "it might occur" can provide suitable alternatives to prevent redundancy.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
it is possible
Expresses a similar level of possibility but is more direct and less conversational.
it might occur
Uses 'might' to indicate a slightly lower probability than 'could'.
it is conceivable
Suggests something is imaginable or believable, though not necessarily likely.
it may come to pass
A more formal and somewhat archaic way of saying something might happen.
it is within the realm of possibility
Emphasizes that something is not impossible, though perhaps improbable.
the potential exists
Focuses on the presence of conditions that could lead to an event.
it's a distinct possibility
Highlights that the chance of something happening is clear and noteworthy.
chances are it will transpire
Emphasizes the likelihood of an event occurring based on current circumstances.
it is liable to happen
Suggests a tendency or predisposition for something to occur.
the stars could align
Implies that an improbable confluence of events could lead to something happening.
FAQs
How can I use "that could happen" in a sentence?
Use "that could happen" to introduce a possible outcome or event. For example, "If we don't address climate change, "that could happen" to coastal cities".
What are some alternatives to "that could happen"?
Alternatives include "it is possible", "it might occur", or "it is conceivable". Choose the one that best fits the context and level of formality.
Is it grammatically correct to say "that could happen"?
Yes, "that could happen" is grammatically correct. It uses the modal verb 'could' to express possibility, which is a standard construction in English.
What's the difference between "that could happen" and "that will happen"?
"That could happen" suggests a possibility, while "that will happen" expresses a certainty. The choice depends on the level of confidence you want to convey about the event.
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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
4.1/5
Expert rating
Real-world application tested