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
a stage at which
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a stage at which" is correct and usable in written English.
It can be used to describe a specific point or phase in a process or development. Example: "We are currently at a stage at which we need to evaluate our progress and make necessary adjustments."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Alternative expressions(20)
a point where
a time when
when
a period in which
a situation where
a juncture when
an instance where
a level where
a moment when
a position where
a point in time when
a phase during which
a juncture at which
a time at which
a lawyer at which
a show at which
a funeral at which
a hearing at which
a limit at which
a banquet at which
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
47 human-written examples
Is there a stage at which the unhappy couple can do something, somehow change course?
News & Media
In fact, China has reached a stage at which all "miracle economies" have slowed significantly, but not disastrously.
News & Media
Public debate and opinion have reached a stage at which such revisions now seem at least possible.
News & Media
The ideal degree of doneness is just short of well done, a stage at which the meat achieves the best combination of tenderness, flavor and leanness.
News & Media
But few emerging markets have reached a stage at which they can withstand a sustained collapse in the developed economies, much less serve as substitute engines of global growth.
News & Media
But at some point, in Dr. Woese's reconstruction, the mechanism for translating genetic information into proteins would have become more accurate and powerful, and the members of this ancestral community would have evolved to a stage at which it was difficult to incorporate new material into their genomes.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
13 human-written examples
The clear separation of attributes from the molecular-graph encoding, however, provides applications with options to match and screen notations in large data sets with precedence to attributes, while deferring molecular-connectivity processing to a later stage, at which only a selected set of candidates will be considered.
Science
Here, we explore the fate of AP and BP daughters at a developmental stage at which APs are still a relatively homogeneous population [8] and neuroepithelial rather than radial glial in nature [4], [6], and BPs begin to appear.
Science
Climate change is entering a decisive stage at which it will cease to be a slight inconvenience and become rather a life-and-death struggle for survival.
News & Media
In the current study, we utilized a model of WHO Grade II glioma, specifically oligodendroglioma, a clinical stage at which it is often difficult to distinguish tumors from normal brain tissues during surgery.
These transverse cracks multiply up to a saturation stage at which local delamination at crack tips was observed.
Expert writing Tips
Best practice
When using "a stage at which", ensure that the subsequent clause clearly defines the characteristics or conditions present during that particular stage. For instance, "a stage at which intervention is most effective" provides a specific context.
Common error
Avoid using "a stage at which" without specifying what makes that stage distinct or significant. Vague sentences like "the project is at a stage at which things are happening" lack clarity. Instead, be specific: "the project is at a stage at which we are ready for user testing."
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a stage at which" functions as a relative phrase introducing a clause that specifies a particular point in a process, development, or situation. As shown in Ludwig's examples, this phrase helps to define or describe a particular point in time or progress.
Frequent in
Science
65%
News & Media
25%
Encyclopedias
10%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "a stage at which" is a versatile phrase used to introduce clauses specifying particular conditions or characteristics during a phase. It is grammatically correct and highly common across a variety of sources, as verified by Ludwig. This phrase serves the purpose of providing context and detail, making it especially useful in formal and scientific writing. When using "a stage at which", it is essential to ensure that the subsequent clause clearly defines the characteristics or conditions present during that specific stage to avoid vagueness. Simpler alternatives like "when" can be preferred in informal contexts.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
a point where
This alternative directly replaces "stage" with "point", emphasizing a specific moment rather than a phase.
a phase when
This alternative replaces "stage" with "phase", focusing on a period of development characterized by specific traits.
a time when
This alternative replaces "stage" with "time", emphasizing the temporal aspect of the situation.
a period in which
This alternative focuses on the duration during which something occurs.
a situation where
This alternative shifts the focus to the circumstances or conditions present.
a juncture when
This alternative, using "juncture", suggests a critical or decisive moment.
an instance where
This alternative refers to a specific occurrence or example.
a level where
This alternative refers to a specific degree or standard reached.
a moment when
This alternative focuses on a brief, specific point in time.
a position where
This alternative describes a condition or state relative to circumstances.
FAQs
How can I use "a stage at which" in a sentence?
Use "a stage at which" to refer to a particular point in a process or development where specific conditions or characteristics are present. For example, "We are at "a stage at which" critical decisions must be made."
What are some alternatives to the phrase "a stage at which"?
You can use phrases like "a point where", "a phase when", or "a time when" depending on the context and what aspect you want to emphasize.
Is it better to use "a stage in which" or "a stage at which"?
"A stage at which" is generally preferred when the "which" refers to a specific condition or state existing at that stage. "A stage in which" can be used if you want to emphasize inclusion within a broader process. The choice depends on the intended nuance.
Can "a stage at which" be used in both formal and informal writing?
Yes, "a stage at which" is suitable for both formal and informal writing, although it is more commonly found in formal and academic contexts. In informal writing, simpler alternatives like "when" might be preferred.
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested