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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.

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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.

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CEO of Professional Science Editing for Scientists @ prosciediting.com

Until when
Grammar usage guide and real-world examples

USAGE SUMMARY

"until when" is correct and usable in written English
You can use it to ask a question about a period of time that is continuing or will continue up until a certain point. For example: "How long are you staying in town until when?"

✓ 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

60 human-written examples

O Lord, until when?

News & Media

The New York Times

She grew up comfortably in Little Rock until, when she was ten, her father died.

News & Media

The New Yorker

Wait until when?" Then an unseen announcer concludes: "The world needs American strength, not apologies".

News & Media

The New York Times

Others could defer it until when the property was sold or they died.

News & Media

Independent

"I'm staying with my sister until, well, I don't know until when," she said.

News & Media

The New York Times

It's not just from when you show up at the ballpark until when you leave.

News & Media

The New York Times

Or at least I did up until when my mum died.

News & Media

The Guardian - Music

Until when would killing and destruction... be our share, while security, stability and happiness are yours?

News & Media

The New York Times

That went for playing when I was 17 until when I was 40.

News & Media

The Guardian - Sport

"At one of the protests outside the press club I heard the slogan 'Until when?

News & Media

The Guardian

We are really tense, even the shops have now closed… after all, until when will they run on inverters [batteries]?

News & Media

The New York Times

Expert writing Tips

✓ Best practice

When using "until when", ensure the context clearly indicates the event or condition that marks the end of the duration you are questioning. For example, "I'm staying with my sister until when?" implies a future event will determine the end of the stay.

⚠ Common error

Avoid using "until when" without a clear reference point. For example, instead of saying "The project will last until when?", specify "The project will last until when the funding runs out?" or "The project will last until when the deadline is reached?".

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Linguistic Context

The phrase "until when" primarily functions as an interrogative prepositional phrase. It is used to inquire about the specific time or condition that marks the end of a period or activity. As Ludwig AI confirms, it's grammatically sound and usable.

Expression frequency: Very common

✓ Frequent in

News & Media

35%

Science

30%

Formal & Business

15%

⚠ Less common in

Wiki

10%

Encyclopedias

Reference

Ludwig's WRAP-UP

In summary, "until when" serves as an interrogative phrase used to inquire about the ending point of an event or period. Ludwig AI confirms its grammatical correctness and usability across various contexts. While it is frequently found in News & Media, Science, and Formal & Business contexts, it maintains a neutral register. Remember to provide a clear temporal reference when using "until when" to avoid ambiguity. For more formal contexts, consider alternatives such as "up to what point" or "until what time". Overall, "until when" is a common and versatile phrase for seeking clarification on temporal limits.

Alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

how long will it last

Focuses on the duration, similar to "until when", but expressed as a statement.

for what duration

A more formal way of asking about the length of time.

up to which point

Highlights the specific point in time that something continues.

till what time

A direct question about the ending time.

until what date

Specifies the need for a date as the endpoint.

how much longer

Implies that something is already ongoing and asks for the remaining duration.

More alternative expressions(6)

until where

until why

until whenever

until well

until lf

until who

FAQs

How do I use "until when" in a sentence?

Use "until when" to inquire about the termination point of an event or action. For example: "We are offering support "until when" do you need it?". The context should provide a clear understanding of what event will mark the end.

What's a less direct alternative to "until when"?

Instead of directly asking ""until when"?", you could ask "What's the timeframe for this?" or "What's the deadline?" depending on the situation.

Is "until when" appropriate for formal writing?

While grammatically correct, "until when" is more common in spoken language or informal writing. In formal writing, consider using phrases like "up to what point" or "until what time" for a more polished tone.

What is the difference between ""until when"" and "how long"?

"How long" inquires about the duration of an event, while ""until when"" asks about the specific end point or condition that marks the termination of the event. For instance, "How long will you be staying?" asks about the duration, whereas "You're staying until when?" asks about the date or event that marks the end of your stay.

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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

81%

Authority and reliability

4.1/5

Expert rating

Real-world application tested

Most frequent sentences:

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Until whenGrammar usage guide and real-world examples

Until when
Grammar usage guide and real-world examples