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
and accurately when
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "and accurately when" is not correct and lacks clarity in written English.
It may be intended to indicate a condition or timing for accuracy, but it needs additional context to be meaningful. Example: "Please ensure that you report the data and accurately when the results are finalized."
⚠ May contain grammatical issues
Science
News & Media
Wiki
Alternative expressions(20)
precisely when
and precisely when
and just as
and exactly when
and specifically when
and particularly when
and incidentally when
and importantly when
and really when
and lastly when
specifically when
solely this
only if
holding when
just this
trying when
at which point
at what time
if and only if
just in the event that
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
8 human-written examples
Yet in Dehaene's experiments, while subjects answered quickly and accurately when the digits were far apart, like 2 and 9, they slowed down when the digits were closer together, like 5 and 6.
News & Media
Pastor John S. Kerr King of Prussia, Pa .Jim Holt, in his article on the cognitive scientist Stanislas Dehaene, describes an experiment in which subjects were asked to identify the larger number in a pair: "while subjects answered quickly and accurately when the digits were far apart, like 2 and 9, they slowed down when the digits were closer together, like 5 and 6.
News & Media
The results illustrate that data-based models can describe habitat suitability more objectively and accurately when there are sufficient data.
Science
Those criteria that survive this scrutiny and that have clinical import must be reported upon fully and accurately when communicating trial results.
The theory of distributed cognition builds on research that suggests that people complete tasks more quickly and accurately when assisted by external representations than when relying on abstract mental models alone (e.g., Liu et al. 2008; Zhang and Norman 1994).
By using subliminal affective priming paradigms [15] [21], studies found that subjects responded to a target more quickly and accurately when its valence was the same as a prime than when they were different.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
51 human-written examples
These help firms keep much closer track of orders, inventories and the like, and so help them to determine faster and more accurately when extra staff are needed.
News & Media
However, because subjects responded faster, and more accurately, when the path distance was shorter and the goal was ahead of them (Table S1), we explored whether hippocampal activity was related to an interaction between the path distance and the egocentric goal direction by examining the response to the multiplication of these two variables.
Science
The findings from Experiment 2 showed that words in extrafoveal locations were recognised more quickly and more accurately when displayed to the right of fixation, and so provide further evidence of an LH advantage for processing Arabic words.
Science
The results were clear: for both vision and haptics, sequential shape matching was performed faster and more accurately when a given object was presented both times at the same size compared to when it changed size from the first to the second presentation.
Science
More recent studies have shown that surgeons perform math calculations faster and more accurately when they listen to music they like.
News & Media
Expert writing Tips
Best practice
When aiming for precision, replace "and accurately when" with more explicit alternatives like "and precisely when" or rephrase for clarity.
Common error
Avoid using "and accurately when" without ensuring a clear connection between the accuracy and the timing. Rewrite to specify what should be accurate and under what conditions.
Source & Trust
78%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
"And accurately when" functions as a conjunction phrase, attempting to link accuracy with a specific point in time or condition. Ludwig AI states that this phrase is grammatically questionable and lacks clarity. The phrase requires additional context to be meaningful.
Frequent in
Science
50%
News & Media
37%
Wiki
13%
Less common in
Formal & Business
0%
Encyclopedias
0%
Academia
0%
Ludwig's WRAP-UP
In summary, the phrase "and accurately when" is grammatically suspect and lacks clarity in contemporary English writing. Ludwig AI confirms this, indicating the phrase requires additional context for meaning. While examples appear across various domains, its unidiomatic nature suggests rephrasing for enhanced precision and clarity. Consider alternatives like "and precisely when" or restructuring the sentence to explicitly connect accuracy with the intended timing or condition. The most authoritative sources are science and news media, even so, the phrase remains uncommon across authoritative contexts.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
and precisely when
Replaces "accurately" with "precisely" to emphasize exactness.
and correctly when
Substitutes "accurately" with "correctly" for general accuracy.
and reliably when
Replaces "accurately" with "reliably" focusing on dependability.
and with accuracy when
Rephrases to include "with accuracy" for grammatical correctness.
and only when accurate
Emphasizes conditionality by stating something happens only if accurate.
and report accurately when
Adds "report" to imply the accurate relaying of information at a specific time.
and ensure accuracy when
Includes "ensure" to convey guaranteeing precision at a given moment.
and be accurate when
Adds "be" before accurate for a more grammatically sound construction.
and to be accurate when
Expresses the phrase including "to be" to be grammatically sound.
and validate accurately when
Emphasizes the process of validating something at a particular time.
FAQs
What does "and accurately when" mean?
The phrase "and accurately when" is not standard English and lacks a clear meaning without additional context. It may be intended to link an action with the condition of accuracy at a specific time.
How can I use "and accurately when" correctly in a sentence?
It's best to avoid using the phrase "and accurately when" directly. Instead, rephrase to clarify the relationship between accuracy and timing, such as "and validate "precisely when" necessary".
Which is correct, "and accurately when" or "and precisely when"?
"And precisely when" is a better alternative to "and accurately when", as the latter sounds unidiomatic. However, clarity should always be prioritised.
What can I say instead of "and accurately when"?
Depending on the context, alternatives include "and "correctly when"", "and "reliably when"", or rephrasing to specify the conditions for accuracy.
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
78%
Authority and reliability
2.8/5
Expert rating
Real-world application tested