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
even be sure that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "even be sure that" can be used in written English.
It is typically used to emphasize doubt or uncertainty about something. Here is an example: "I can't even be sure that I locked the door before leaving. I'm always second-guessing myself."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(2)
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
19 human-written examples
One could not even be sure that Tim recognised himself.
News & Media
No one could even be sure that the United States would deliver on Marshall's pledge.
News & Media
He cannot even be sure that it will survive intact through the primary.
News & Media
You probably don't know that you want to, or else you may even be sure that you don't.
News & Media
We can't even be sure that the forecasts guiding our decisions are more insightful than what we would hear from oracles examining goat guts.
News & Media
I can't even be sure that it was actually a new episode – hand on heart, I'd seen every beat, every edit, every musical cue and snipe and scripted put-down at least a dozen times before.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
41 human-written examples
But you can't even be sure of that".
News & Media
Now you can't even be sure about that anymore.
News & Media
They were referred to simply as Zimbabweans, though no one could even be sure they were that.
News & Media
What's going to happen?" — even though I'm sure that's what he was thinking.
News & Media
Again, it appears that tests have not yet been completed.It is even difficult to be sure that all the incidents are separate.
News & Media
Expert writing Tips
Best practice
When expressing uncertainty, pair "even be sure that" with modal verbs like "can't", "cannot", or "couldn't" to enhance the sense of doubt. For example: "I can't even be sure that I locked the door."
Common error
Avoid using "even be sure that" when you actually possess a degree of certainty. This phrase is best reserved for situations where genuine doubt exists; otherwise, it can weaken your statement and confuse the reader.
Source & Trust
86%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "even be sure that" functions as a hedge, softening a statement and indicating uncertainty. It suggests that the speaker lacks confidence in the truth or accuracy of a particular claim. As supported by Ludwig AI, the phrase expresses doubt.
Frequent in
News & Media
62%
Academia
19%
Science
19%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "even be sure that" is a common and grammatically sound way to express uncertainty in English. As Ludwig AI confirms, its primary function is to hedge statements, conveying a lack of confidence. Predominantly found in News & Media, Academic, and Scientific contexts, the phrase serves to qualify claims and signal doubt. When using this phrase, pair it with modals like "can't" or "couldn't" to reinforce uncertainty, and avoid overusing it when you possess a degree of certainty. Consider alternatives like "even be certain that" to fine-tune the nuance of your expression.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
even be certain that
Replaces "sure" with "certain", indicating a shift towards a slightly stronger degree of confidence, though still within the realm of uncertainty.
even be convinced that
Substitutes "sure" with "convinced", implying a state of persuasion or belief, despite underlying doubt.
even be positive that
Employs "positive" instead of "sure", suggesting a more assertive, though potentially still questionable, level of assurance.
even be confident that
Replaces "sure" with "confident", focusing on the feeling of self-assurance, which might contrast with the reality of the situation.
even be definite that
Changes "sure" to "definite", highlighting the perceived clarity or finality of the situation, even if uncertain.
even be clear that
Uses "clear" in place of "sure", emphasizing the apparent transparency or obviousness of a situation, despite possible doubt.
even be guaranteed that
Replaces "sure" with "guaranteed", suggesting an assurance or promise that is, in reality, uncertain.
even be known that
Changes "sure" to "known", indicating a supposed fact or piece of information that is, in fact, uncertain.
even be established that
Employs "established" instead of "sure", emphasizing the supposed validation or confirmation of a situation, despite doubt.
even be proven that
Substitutes "sure" with "proven", suggesting verification or validation of a statement.
FAQs
What does "even be sure that" mean?
The phrase "even be sure that" is used to express a strong sense of doubt or uncertainty about something. It emphasizes the lack of confidence in a particular fact or situation.
How can I use "even be sure that" in a sentence?
You can use "even be sure that" to convey uncertainty. For example, "I can't "even be sure that" I turned off the stove before leaving the house."
What are some alternatives to "even be sure that"?
Alternatives include phrases like "even be certain that", "even be convinced that", or "not even be sure of", all expressing varying degrees of doubt.
Is it grammatically correct to say "even be sure that"?
Yes, "even be sure that" is grammatically correct and commonly used to express uncertainty, as demonstrated by its use in numerous reputable sources.
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
86%
Authority and reliability
4.3/5
Expert rating
Real-world application tested