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 quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

so fast that

Grammar usage guide and real-world examples

USAGE 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

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

So fast that it's hard not to feel rushed.

The pace is so fast that mistakes sometimes happen.

"It happened so fast that you really noticed them".

News & Media

The New York Times

One type grows so fast that early diagnosis is futile.

But bidding went so fast that she quickly dropped out.

This happens so fast that the image looks static.

Then he ran so fast that he seemed to change.

News & Media

The New York Times

The pace of change these days is so fast that you need to continuously be updated.

Well, you're going so fast that you move further away from this object.

During testing, we noticed that the car would travel so fast that it would overshoot turns.

Chemical reactions happen so fast that it can be difficult to study them in real time.

Show more...

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.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

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.

Expression frequency: Very common

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.

ChatGPT power + Grammarly precisionChatGPT power + Grammarly precision
ChatGPT + Grammarly

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.

Source & Trust

84%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: