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
until to
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'until to' is not a correct or usable phrase in English.
The correct phrase is 'until' or 'up to'. For example, "I will be able to work until 10pm tonight."
⚠ May contain grammatical issues
Science
News & Media
Wiki
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
59 human-written examples
The new fracture changes its direction gradually, until to the direction of the maximum horizontal stress.
In some cases also dangerous concentrations until to 12,000 ppm were detected.
He followed the path of the migration until, to his bewilderment, the animals suddenly stopped.
News & Media
As a result, to day's Grand Circuit program had to be postponed until to morrow.
News & Media
He lived in constant pain until, to ease the agony, he started to drink.
News & Media
This type of materials undergoes swelling with finite rate, when they are immersed in water, until to reach an equilibrium (steady state) volume.
Science
Three one-fourth scaled composite wall specimens with an aspect ratio of 1.0 were tested until to failure under reversed cyclic lateral load and constant axial load.
Science
The area of adipose tissue newly formed was increased with the number of preadipocytes transplanted until to 1.0×105 cells/site and thereafter leveled off.
Science
Until to my surprise and almost to my disappointment — there were still wonderful lines to come — Mr. Purvis interrupted me.
News & Media
If there exits adsorption interaction, single compact chain is first almost pulled down to the adsorption surface and then moves in the direction of force until to leave the adsorption surface.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
1 human-written examples
The others were not broken until to-day.
Academia
Expert writing Tips
Best practice
Always use "until" or "up to" instead of "until to" to ensure grammatical correctness. The extra "to" is unnecessary and considered an error.
Common error
The most common mistake is adding an unnecessary "to" after "until". Remember that "until" already functions as a preposition indicating a time limit; adding "to" creates a redundant and incorrect phrase.
Source & Trust
82%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "until to" is an incorrect prepositional phrase. The word "until" already functions as a preposition, indicating a time or point that something continues to. Adding "to" is redundant and grammatically unsound, as confirmed by Ludwig.
Frequent in
Science
33%
News & Media
26%
Wiki
7%
Less common in
Formal & Business
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "until to" is a grammatically incorrect construction. As Ludwig AI points out, the correct usage is simply "until" or the phrase "up to". Although "until to" appears in various sources, including scientific and news media, it's essential to avoid this error in formal writing. Use alternatives like "until" or "up to" to ensure grammatical accuracy and clarity in your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
until
Removes the unnecessary "to", correcting the grammatical error while maintaining the original meaning.
up to
Replaces the entire phrase with a grammatically correct alternative indicating a limit or endpoint.
till
Offers a shorter, more informal synonym for "until", maintaining the original meaning.
through
Indicates a continuous action or state from the beginning to the end of a period.
extending to
Specifies the reach or scope of something up to a certain point.
lasting until
Emphasizes the duration of an event or state until a specific time.
going up to
Similar to "up to", this phrase clarifies the upper limit or extent.
persisting until
Highlights the continuation of something, often implying a challenge or difficulty.
continuing until
Focuses on the uninterrupted nature of an action or state up to a certain point.
reaching until
Indicates that something extends or progresses as far as a specified point in time.
FAQs
Is "until to" grammatically correct?
No, "until to" is grammatically incorrect. The correct word to use is "until" or the phrase "up to". Ludwig AI confirms this grammatical issue.
What's the difference between "until" and "until to"?
"Until" is a preposition that indicates a time up to which something happens or is true. "Until to" is an incorrect construction and should be avoided. Use "until" instead.
What can I say instead of "until to"?
How to use "until" correctly in a sentence?
Use "until" to indicate the endpoint of an action or state. For example, "I will work until 5 PM" or "The store is open until midnight". Ensure there is no extra "to" after "until".
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.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
1.8/5
Expert rating
Real-world application tested