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

But once

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "But once" is correct and usable in written English.
It can be used to introduce a condition or situation that occurs after an initial event or circumstance. Example: "But once the sun sets, the temperature drops significantly."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

But once in a while?

News & Media

The New York Times

But once there, she rebelled.

News & Media

The Economist

But, once again, it was a feint.

News & Media

The New Yorker

But once again, he feels good afterward".

But, once it did — whoa, Nelly.

News & Media

The New Yorker

"But once, everyone had the clothes".

News & Media

The New York Times

But, once spent, that money has gone.

News & Media

Independent

But once again, everything is political.

News & Media

The New York Times

But, once again, let's be fair.

News & Media

The New York Times

But once again, "this is business.

News & Media

The Economist

But once we arrived, it made sense.

Show more...

Expert writing Tips

Best practice

When using "But once", ensure the initial clause sets up a clear expectation or condition that is then altered or fulfilled by the subsequent clause.

Common error

Avoid using "But once" when the clauses are not temporally related. Make sure the second part of the sentence truly follows the first in time or logical progression.

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

The phrase "But once" functions as a conjunctive adverbial phrase, linking two clauses by indicating a condition and subsequent result. It presents a contrast or consequence that follows a specific event or realization, as illustrated in the Ludwig examples.

Expression frequency: Very common

Frequent in

News & Media

88%

Science

6%

Formal & Business

3%

Less common in

Encyclopedias

0%

Wiki

0%

Academia

0%

Ludwig's WRAP-UP

In summary, the phrase "But once" is a versatile conjunction phrase used to connect two clauses by indicating a condition and its subsequent result. According to Ludwig, this phrase is grammatically correct and frequently used, especially in News & Media. It serves to establish a temporal or conditional relationship between events, signaling a shift in circumstances. While "But once" maintains a neutral register suitable for diverse writing contexts, remember to use it when a clear sequence of events is presented to ensure clarity and coherence in your writing.

More alternative expressions(6)

Phrases that express similar concepts, ordered by semantic similarity:

FAQs

How can I use "But once" in a sentence?

Use "But once" to introduce a condition or situation that happens after an initial event. For example, "The task seemed daunting, "but once" I started, it became manageable".

What phrases are similar in meaning to "But once"?

Similar phrases include "however after", "yet following", or "although subsequently". These phrases also introduce a result or consequence that follows a specific event or condition.

Is it correct to start a sentence with "But once"?

Starting a sentence with "But once" is grammatically acceptable, especially when you want to emphasize a change or consequence. For instance, "But once the opportunity arose, he seized it immediately".

What's the difference between "But once" and "As soon as"?

"But once" emphasizes a condition that, when met, leads to a certain outcome. "As soon as" ("as soon as") focuses on the immediacy of the action following an event. For example, "But once he understood the rules, he excelled at the game" (condition), versus "As soon as the game started, he scored" (immediacy).

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: