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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
so fast that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "so fast that" is correct and usable in written English.
You can use it when you wish to emphasize the degree of speed of a particular action. For example: "He drove so fast that he set a new world speed record for that type of car."
✓ Grammatically correct
News & Media
Academia
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
So fast that it's hard not to feel rushed.
News & Media
The pace is so fast that mistakes sometimes happen.
News & Media
"It happened so fast that you really noticed them".
News & Media
One type grows so fast that early diagnosis is futile.
News & Media
But bidding went so fast that she quickly dropped out.
News & Media
This happens so fast that the image looks static.
News & Media
Then he ran so fast that he seemed to change.
News & Media
The pace of change these days is so fast that you need to continuously be updated.
Academia
Well, you're going so fast that you move further away from this object.
Academia
During testing, we noticed that the car would travel so fast that it would overshoot turns.
Academia
Chemical reactions happen so fast that it can be difficult to study them in real time.
Academia
Expert writing Tips
Best practice
Use "so fast that" to clearly establish a cause-and-effect relationship where the speed of an action directly leads to a specific outcome.
Common error
Avoid using "so fast that" when the connection between the speed and the consequence is not immediately clear or is only weakly related. Ensure the speed is the primary driver of the result you're describing.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
"So fast that" functions as an adverbial phrase that connects two clauses, indicating a cause-and-effect relationship where the speed of the action in the first clause directly leads to the result described in the second clause. Ludwig AI confirms its correct usage.
Frequent in
News & Media
53%
Academia
20%
Science
10%
Less common in
Wiki
5%
Encyclopedias
1%
Formal & Business
1%
Ludwig's WRAP-UP
The phrase "so fast that" is a grammatically sound construction used to illustrate a direct causal link where speed is a crucial factor. As verified by Ludwig AI, it's a versatile phrase found in various contexts, notably in news, academic, and scientific writing. To enhance your writing, remember to ensure that the speed you're describing genuinely drives the outcome. Consider alternatives like "at such a rate that" for a formal tone, or "moving so quickly as to" for emphasizing rapid action.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
moving so quickly as to
Changes the structure to focus on the act of moving quickly and its immediate result, often implying an almost reflexive action.
at such a rate that
Replaces "so fast" with "at such a rate", altering the emphasis slightly but retaining the core meaning of speed causing a consequence.
with such rapidity that
Substitutes "so fast" with "with such rapidity", providing a more formal tone while conveying the same meaning.
its rate of change was so high that
Specifically highlights the "rate of change", making it ideal for describing rapidly evolving situations or data.
to such an extent that it was fast
This is a more verbose alternative that emphasizes the degree to which something was fast, leading to a result.
the speed was such that
Inverts the sentence structure to emphasize the speed itself as the primary subject, making the consequence a secondary clause.
at that velocity that
Uses more technical terminology ("velocity") to describe speed and its consequences, suitable for scientific or technical contexts.
at that pace that
Focuses on the tempo or rhythm of the action, rather than just the speed, implying a continuous and quick progression.
proceeding at such a clip that
Uses the idiomatic expression "at such a clip" to denote a fast pace, which might sound more informal but still expresses the same cause-and-effect.
unfolding with such haste that
Replaces "fast" with "haste", emphasizing the urgency or rush involved in the action, often implying a lack of carefulness.
FAQs
How can I use "so fast that" in a sentence?
Use "so fast that" to emphasize the speed of an action and its direct consequence. For example, "He ran "so fast that" he broke the record".
What are some alternatives to saying "so fast that"?
You can use alternatives like "at such a rate that", "moving so quickly as to", or "with such rapidity that" depending on the context.
Is it correct to say "too fast that" instead of "so fast that"?
No, "too fast that" is grammatically incorrect. Use ""so fast that"" to correctly indicate a consequence resulting from speed.
What's the difference between "so fast that" and "so quickly that"?
While both phrases are similar, ""so fast that"" often implies a more immediate or dramatic consequence compared to "so quickly that". The choice depends on the nuance you want to convey.
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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
4.5/5
Expert rating
Real-world application tested