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 soon
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "that soon" is correct and usable in written English.
It can be used to indicate that something will happen in a short amount of time or shortly after a certain point. Example: "I didn't expect to see her again that soon after our last meeting."
✓ Grammatically correct
News & Media
Science
Formal & Business
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
53 human-written examples
Might that soon change?
News & Media
That soon changed.
News & Media
That soon ended.
News & Media
Expect that soon.
News & Media
But more on that soon.
News & Media
But that soon may change.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
5 human-written examples
— that would soon fade away.
News & Media
We will be posting that data soon.
News & Media
But in San Francisco, that may soon change.
News & Media
But get ready, that will soon change.
News & Media
However, he said, that might soon change.
News & Media
Expert writing Tips
Best practice
Use "that soon" to express a sense of surprise or expectation regarding the timing of an event. It's effective when you want to emphasize the proximity of an event to a previous one or to the present moment.
Common error
While "that soon" is widely understood, it can sound informal in highly professional or academic contexts. In those cases, consider using alternatives like "shortly thereafter" or "in the near future" to maintain a more sophisticated tone.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "that soon" functions as an adverbial phrase, modifying a verb or clause to indicate the timing or proximity of an event. As Ludwig AI confirms, it's grammatically correct. Examples in Ludwig show its use in various contexts to express the nearness of a future event or the short interval after a previous one.
Frequent in
News & Media
48%
Science
15%
Formal & Business
10%
Less common in
Wiki
6%
Reference
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "that soon" functions as an adverbial phrase denoting a short period. Ludwig AI confirms its grammatical correctness, and its widespread use across diverse sources – particularly in news and media – confirms its versatility. While perfectly acceptable for most contexts, slightly more formal alternatives may be preferable in academic or highly professional writing. Its effectiveness lies in its ability to convey the proximity of an event, whether expressing surprise, anticipation, or simply providing a temporal reference. Therefore, you should use it freely in conversations but carefully in more formal papers.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
so quickly
Emphasizes the speed at which something occurs, similar to "that soon" but focuses more on the rapid pace.
so rapidly
Similar to "so quickly", but suggests a more significant or noticeable rate of change in a short amount of time.
in such short time
Highlights the brevity of the time frame, expressing surprise or disbelief that something happened so fast.
this quickly
Focuses on the unexpected speed of an event, often used to express surprise.
before long
Indicates that something will happen in the near future, closely related to "that soon" in terms of timeframe.
in a little while
Suggests a brief duration before something happens, similar to "that soon" but less immediate.
presently
Indicates that something will occur shortly, suitable for more formal contexts.
momentarily
Implies an almost immediate occurrence, emphasizing the very short duration.
shortly thereafter
Used to indicate that something happened a brief time after a previous event, more formal than "that soon".
in the near future
Indicates that something will happen relatively soon, but with less precision than "that soon".
FAQs
How can I use "that soon" in a sentence?
You can use "that soon" to indicate that something will happen in a short amount of time or shortly after a certain point. For example, "I didn't expect to see her again "that soon" after our last meeting".
What alternatives can I use instead of "that soon"?
Depending on the context, you can use alternatives like "so quickly", "before long", or "in the near future".
Is it correct to use "that soon" in formal writing?
While grammatically correct, "that soon" might sound informal in highly professional or academic contexts. Consider more formal alternatives like "shortly thereafter" or "in a short period".
What's the difference between "that soon" and "so soon"?
"That soon" and "so soon" are often interchangeable, but "that soon" can sometimes imply a stronger connection to a preceding event or expectation. "So soon" may simply express surprise at the quickness of an event.
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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested