Ludwig is an AI-powered English writing assistant that helps you find example sentences, check grammar, and improve your writing using reliable sources from reputable publications.

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Ludwig provides contextual example sentences from reliable sources like The New York Times, BBC, and academic publications, helping you understand how words and phrases are used in real-world contexts. This improves both writing fluency and comprehension skills.

Ludwig is trusted by students, teachers, researchers, and professionals worldwide. It's used by top universities including MIT, Stanford, Harvard, and Oxford, as well as professionals in tech companies like Adobe.

What makes Ludwig different from other writing tools?

Ludwig focuses on providing real example sentences from authoritative sources, not just grammar checking. This contextual approach helps users understand not just what's correct, but how language is actually used by native speakers and professional writers.

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

As fast as
Grammar usage guide and real-world examples

USAGE SUMMARY

"as fast as" is a correct and usable phrase in written English
You can use it to compare two things in terms of speed. For example: "My car can go as fast as a race car."

✓ Grammatically correct

News & Media

Academia

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

"As fast as you can".

News & Media

The New York Times - Sports

Not as fast as we were.

News & Media

The New Yorker

I wrote as fast as I could.

News & Media

The New Yorker

We try as fast as we can".

News & Media

The Guardian

Oscillating as fast as possible.

Academia

Massachusetts Institute of Technology

Run as fast as Paul Ryan pretends to.

News & Media

The New York Times

It's gone as fast as it appears.

Academia

Harvard University

"Sprint as fast as you can".

News & Media

The New York Times - Sports

Go as fast as you can.

News & Media

The Guardian - Music

As fast as seven seconds – or less.

News & Media

The Guardian - Sport

Be as fast as you can".

News & Media

The New Yorker

Expert writing Tips

✓ Best practice

When comparing speeds, ensure both subjects of comparison are clearly defined to avoid ambiguity. For example, instead of saying "He runs as fast as he can", specify "He runs as fast as a sprinter".

⚠ Common error

Avoid using ""as fast as"" when you actually mean "faster than". Ensure the comparison is accurate and reflects the intended speed relationship.

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Linguistic Context

The phrase "as fast as" functions as a comparative adverbial phrase. It is used to indicate that two subjects perform an action with equal speed, expressing equivalence in velocity or rate. Ludwig's examples showcase this function across varied contexts.

Expression frequency: Very common

✓ Frequent in

News & Media

69%

Academia

23%

Science

⚠ Less common in

Encyclopedias

Formal & Business

Wiki

Ludwig's WRAP-UP

In summary, "as fast as" is a commonly used comparative phrase that indicates equal speed between two subjects. Ludwig AI confirms its grammatical correctness and widespread use in various contexts, particularly in news media and academic writing. When using this phrase, clarity in defining the subjects of comparison is crucial to avoid ambiguity. While several alternatives exist, such as "at the same speed as" or "equally as quick as", the choice depends on the specific nuance you wish to convey.

Alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

at the same speed as

Replaces "fast" with "speed", focusing on the rate of movement.

equally as quick as

Substitutes "fast" with "quick" and adds "equally" to emphasize the comparison.

just as rapidly as

Replaces "fast" with "rapidly", using an adverbial form to describe the action.

with the same velocity as

Employs a more formal term, "velocity", to denote speed and direction.

as swiftly as

Uses "swiftly" as an alternative adverb to "fast", indicating quickness.

matching the pace of

Shifts the focus to "pace" rather than direct speed, suggesting a maintained rhythm.

More alternative expressions(6)

as shortly as

as speedily as

as slowly as

as expeditiously as

as short as

as accelerated as

FAQs

How can I use "as fast as" in a sentence?

Use "as fast as" to compare the speed of two different subjects, such as "This car is "as fast as" a race car".

What are some alternatives to "as fast as"?

Alternatives include "at the same speed as", "equally as quick as", or "just as rapidly as".

Which is correct, "as fast as" or "faster than"?

"As fast as" indicates equal speed, while "faster than" indicates one thing is quicker. For example, say "This cheetah is "as fast as" that one" or "This cheetah is "faster than" that one".

What's the difference between "as fast as" and "as quickly as"?

While similar, "as fast as" directly relates to speed, while "as quickly as" may refer to the time taken to complete an action. "He runs "as fast as" he can" versus "He finished the race "as quickly as" possible".

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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

87%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Most frequent sentences:

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As fast asGrammar usage guide and real-world examples

As fast as
Grammar usage guide and real-world examples