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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
can only assert
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "can only assert" is correct and usable in written English.
It can be used when indicating a limitation in what can be claimed or stated, often in a context of certainty or evidence. Example: "Based on the available data, we can only assert that the results are preliminary and require further investigation."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(3)
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
10 human-written examples
He can only assert it, again and again, in various tones and pitches, as if the reader were hard of hearing.
News & Media
Fetchit reluctantly agrees, but insists on a hefty salary hike, a hired car and various other symbols of his importance to the studio; fully aware of the ignoble nature of the roles he's forced to play, he can only assert his authority — and assuage his wounded pride — by insisting on ostentatious displays of his commercial success.
News & Media
By not using a grill, you are buying into the pernicious myth that, as human beings, we can only assert our own agency by working and spending in such a blur of activity that we allow ourselves no time to perfect life's simple pleasures.
News & Media
"There is," he said, "the 20th century view that the United States and Russia are destined to be antagonists, and that a strong Russia or a strong America can only assert themselves in opposition to one another.
News & Media
It is tempting to speculate that HGT helped A. oryzae adapt to some new evolutionary niche, but based on our analysis we can only assert that HGT enhanced the hydrolytic and fermentation abilities of this species.
Science
Today, consumers can only assert their rights after the event, through the rules on liability.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
48 human-written examples
But there, too, the challenge is to demonstrate that Canada can not only assert its claims but also enforce them.
News & Media
In case of stenosis in a patient with hypertension and renal FMD, the severity of stenosis and its relation to hypertension can only be asserted in case of asymmetrical kidney size.
Science
After discussion with the GOA curation team, a manual annotation can only be asserted based on published experimental results.
Science
There is no principled way to distinguish Iraq from North Korea and Pakistan, both of which clearly have the weapons systems we thus far can only infer or assert are in Iraq's possession.
News & Media
Obama only asserted privilege over "post-February 4, 2011 documents".
News & Media
Expert writing Tips
Best practice
Pair "can only assert" with a clear explanation of why you are limited to an assertion. Briefly describe the missing information or potential counterarguments.
Common error
Avoid using "can only assert" when stronger evidence is available. If you have solid data or proof, opt for more confident language to accurately reflect the strength of your argument.
Source & Trust
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "can only assert" functions as a qualifier, limiting the strength of a statement. It acknowledges that a claim is being made without providing conclusive proof. As Ludwig AI points out, it is used when certainty is not possible.
Frequent in
Science
30%
News & Media
30%
Formal & Business
20%
Less common in
Encyclopedias
10%
Wiki
5%
Reference
5%
Ludwig's WRAP-UP
In summary, the phrase "can only assert" is a grammatically correct and usable expression that indicates a limitation in the strength of a statement. As Ludwig AI has confirmed, it is suitable when conveying information without conclusive proof. Although it's not a very common phrase, it appears primarily in scientific, news and formal contexts. When employing this phrase, ensure that it aligns with the available evidence and avoid using it when stronger statements can be made. Alternatives like "can merely state" or "can simply declare" can be considered for nuanced expression.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is limited to asserting
Highlights the constraint or restriction on the ability to provide more than a simple assertion.
can merely state
Focuses on the act of stating with minimal additional implication, suggesting a simple declaration without further proof or elaboration.
is confined to stating
Emphasizes the restriction to making a statement, suggesting that more detailed evidence or explanation is unavailable or not possible.
can simply declare
Emphasizes the ease and straightforwardness of the declaration, but still implies a limitation in supporting evidence.
is restricted to claiming
Focuses on the limitation to making a claim, often implying that the claim is not fully substantiated.
can just affirm
Highlights the act of confirming something, often without deep analysis or extensive backing.
can only suggest
Reduces the strength of the statement to a suggestion, indicating a lack of strong evidence or certainty.
can only posit
Introduces an element of hypothesis or conjecture, suggesting a proposition that needs further exploration.
can only hypothesize
Directly indicates the speculative nature of the statement, emphasizing that it is based on limited information.
can only speculate
Indicates a lack of concrete evidence, focusing on the act of guessing or forming a theory without firm proof.
FAQs
How do I use "can only assert" in a sentence?
Use "can only assert" to indicate that you are limited to making a statement without providing extensive proof or justification. For example, "Based on preliminary data, we "can only assert" a correlation, not causation".
What can I say instead of "can only assert"?
You can use alternatives like "can merely state", "can simply declare", or "can just affirm" depending on the specific context.
When is it appropriate to use "can only assert"?
It's appropriate when you want to acknowledge the limitations of your knowledge or the evidence available, indicating that you're making a statement without strong supporting evidence. This shows transparency and intellectual honesty.
What's the difference between "can only assert" and "can confidently state"?
"Can only assert" implies a lack of strong supporting evidence, while "can confidently state" suggests a high degree of certainty backed by solid evidence. The choice depends on the strength of the supporting information available.
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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
82%
Authority and reliability
4.1/5
Expert rating
Real-world application tested