can never be certain

USAGE SUMMARY

The part of the sentence "can never be certain" is correct and usable in written English.
You can use it when you want to express that whatever the situation, there is a degree of uncertainty that persists. For example, "We can never be certain which team will win the contest."

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Edna can never be certain which category she's in.

The New Yorker

"We can never be certain on a particular case".

The New York Times

But you can never be certain until you see it in reality".

The New York Times - Magazine

Men can never be certain a baby is theirs, a fact that some women exploit.

The Guardian

You can never be certain how far down an economy will spiral.

The New Yorker

This is possible, but Israel can never be certain about future Palestinian intentions.

The New York Times

With gray-area decisions, you can never be certain you've made the right call.

Harvard Business Review

When companies develop new technologies, they can never be certain how the market will respond.

Harvard Business Review

CTE can only be diagnosed post mortem and we can never be certain about Henry VIII's diagnosis.

University of California, Berkeley

But we can never be certain in every case that someone — a veiled mind — isn't playing us for suckers.

The New Yorker

You can never be certain that an option like this will lead to the rescue of the hostage..

The Guardian

Expert writing Tips

Best practice

When writing about complex topics, such as scientific research or economic forecasts, "can never be certain" appropriately conveys the limitations of current understanding or predictive models.

Common error

Avoid using "can never be certain" excessively in contexts where a reasonable degree of confidence or probability exists. Overusing the phrase can weaken your argument and make you seem indecisive when some level of certainty is possible.

Linguistic Context

The phrase "can never be certain" functions as a qualifier, adding a degree of uncertainty to a statement. As Ludwig AI points out, it indicates that despite best efforts or available information, a complete assurance or guarantee is not possible. This usage is consistent across various domains.

Expression frequency: Very common

Frequent in

News & Media

40%

Science

30%

Academia

20%

Less common in

Formal & Business

5%

Encyclopedias

3%

Reference

2%

Ludwig's WRAP-UP

In summary, "can never be certain" is a versatile phrase used to express uncertainty across various contexts, particularly in news, science, and academic writing. Ludwig AI confirms its grammatical correctness and usability, highlighting its function to add a degree of realism and humility to claims. While the phrase is widely applicable, it's crucial to avoid overuse and ensure that it accurately reflects the level of uncertainty involved. Consider alternatives such as "cannot be sure" or "impossible to know" for stylistic variation. Remember to use "can never be certain" thoughtfully to enhance the accuracy and credibility of your writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

cannot be sure

Replaces "never be certain" with "not be sure", maintaining a close semantic equivalence.

cannot guarantee

Substitutes "be certain" with "guarantee", focusing on the lack of assurance.

unable to predict

Emphasizes the inability to foresee a specific outcome.

impossible to know

Highlights the unknowable nature of a situation or outcome.

there's no way to know

Suggests a lack of means to ascertain something.

it is not possible to be sure

A more verbose way of expressing uncertainty.

one cannot be positive

Replaces "certain" with "positive", indicating a lack of confidence.

there is no certainty

Focuses on the absence of definiteness or assurance.

it remains doubtful

Indicates that something is questionable or unlikely.

it's hard to say

Suggests that an answer is difficult to determine.

FAQs

How can I use "can never be certain" in a sentence?

You can use "can never be certain" to express uncertainty about future outcomes, the accuracy of information, or the reliability of predictions. For example, "We "can never be certain" what the long-term effects of climate change will be".

What's a more formal way to say "can never be certain"?

In more formal contexts, consider using phrases like "it is not possible to be sure", "one cannot guarantee", or "the outcome remains doubtful" to convey a similar sense of uncertainty. These alternatives offer a more sophisticated tone.

Which is correct, "can never be certain" or "cannot be certain"?

"Can never be certain" and "cannot be certain" are both grammatically correct and convey the same meaning. The choice between them often depends on personal preference or stylistic considerations.

What are some situations where it's appropriate to use "can never be certain"?

It's appropriate to use "can never be certain" when discussing topics with inherent unpredictability, such as economic forecasts, scientific research with evolving data, or future outcomes influenced by many variables. It acknowledges the limits of knowledge.