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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
I cannot estimate
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "I cannot estimate" is correct and usable in written English.
You can use it when expressing an inability to make a judgment or calculation about something, often due to lack of information or uncertainty. Example: "Given the incomplete data, I cannot estimate the project's total cost at this time."
✓ Grammatically correct
News & Media
Science
Alternative expressions(1)
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
4 human-written examples
"I cannot estimate how long we will need before we can control our airspace without American support".
News & Media
I cannot estimate the numbers but there is one thing we should keep in mind: In January 2014 eight other countries lifted restrictions: Austria, Belgium, France, Germany, Luxembourg, Malta, Spain, and The Netherlands In 2004, only the UK, Ireland and Sweden opened their doors to Eastern European workers.
News & Media
I cannot estimate a fixed effects model for realised return because there is only one observation for the return period.
Science
I cannot estimate [the consequences of climate change].
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
Barclays is defending the cases and warns it cannot estimate potential losses.
News & Media
However, theoretical analyses also indicate that the DOA-BB-MUSIC estimator cannot estimate the polarization parameters either.
On the other hand, without the knowledge of CFO, a training-based estimator cannot estimate I/ Qmismatch accurately.
I frequently fit models that MLwiN cannot estimate (e.g., MLM multiple group structural equation models) and I rarely fit models with more than two levels (which Mplus currently cannot estimate).
Therefore, we cannot estimate the effect of missing variables in the scores estimations.
Science
Thus, we cannot estimate to what extent the individual physicians were exposed to the intervention (i.e., dose delivered).
Science
RR = Relative Risk, 95%CI = 95% confidence interval * based on tertiles # As there is one cell with a zero, we cannot estimate RR directly.
Science
Expert writing Tips
Best practice
Use "I cannot estimate" when you genuinely lack sufficient data or information to make a reasonable guess. Avoid using it as a way to deflect responsibility if an estimate is actually possible.
Common error
Be careful not to overuse "I cannot estimate" as a means of avoiding accountability. If some form of estimation is possible, even with limited data, provide a range or a qualified guess instead of completely disclaiming any ability to estimate.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "I cannot estimate" functions as a declarative statement expressing the speaker's inability to provide an estimate due to lack of information or capability. As confirmed by Ludwig, this phrase is grammatically correct and suitable for use in written English.
Frequent in
Science
50%
News & Media
50%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "I cannot estimate" is a grammatically correct and usable expression indicating an inability to make a judgment or calculation, often due to a lack of information, as confirmed by Ludwig. It is considered relatively rare, appearing primarily in science and news media contexts. While versatile, it's important to avoid overuse as a means of evading accountability. Alternatives such as "I am unable to calculate" or "I cannot determine" offer nuanced options for expressing a similar meaning. Ensure its usage is appropriate for the level of formality and audience.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
I am unable to calculate
Replaces "estimate" with "calculate", emphasizing the lack of ability to perform a computation.
I cannot determine
Focuses on the inability to ascertain or establish something definitively.
I am not in a position to assess
Indicates a lack of readiness or authority to evaluate the situation.
I cannot quantify
Highlights the inability to express something in numerical terms.
It's impossible for me to gauge
Emphasizes the impossibility of measuring or evaluating something.
I'm unable to predict
Shifts the focus to the inability to foresee future outcomes.
I have no way of knowing
Expresses a complete lack of information or insight.
I lack the means to evaluate
Highlights the absence of necessary resources or methods for assessment.
I am not able to approximate
Focuses on the inability to give a rough or inexact calculation.
I cannot project
Indicates the inability to extend present trends or data into the future.
FAQs
When is it appropriate to use "I cannot estimate"?
Use "I cannot estimate" when you genuinely lack the information or tools necessary to make even a rough calculation or prediction. It's appropriate when faced with high uncertainty or incomplete data.
What are some alternatives to "I cannot estimate"?
Alternatives include "I am unable to calculate", "I cannot determine", or "I am not in a position to assess", depending on the specific context.
Is "I cannot estimate" formal or informal?
"I cannot estimate" is suitable for both formal and informal contexts. The level of formality is more dependent on the surrounding language and the audience than on the phrase itself.
What's the difference between "I cannot estimate" and "I can't estimate"?
"I cannot estimate" and "I can't estimate" are semantically identical. The contracted form "I can't estimate" is slightly less formal, but both are widely accepted in written and spoken English.
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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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested