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
be very sure
Grammar usage guide and real-world examplesUSAGE SUMMARY
"be very sure" is a perfectly correct and usable phrase in written English.
You could use it to emphasize the seriousness and importance of something, such as: "Be very sure to double-check your work before submitting it, as any errors could count against you."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(20)
be absolutely certain
make sure
ascertain beyond doubt
confirm unequivocally
leave no room for doubt
take utmost care
exercise extreme caution
err on the side of caution
be darn good
be dang sure
be completely positive
be darn tricky
be darn sure
be darn lucky
be damn sure
ensure without a doubt
making darn sure
be darn useful
be darn excellent
be darn cute
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
59 human-written examples
If the whole premise of ESA is that 1.5 million people are able to work despite their health conditions or disability "with the right support", then surely we need to be very sure that this support works?
News & Media
A writer who throws bombs of this kind should be very sure of his own ground.
News & Media
"I wanted to be very sure that he himself hadn't taken part in the rape.
News & Media
"I can be very sure there is no one left inside," Mr Zhang said.
News & Media
We have to be very sure that the testimony that has been given stands scrutiny".
News & Media
"You have to be very sure of your relationship," she said.
News & Media
"You can be very sure that we are working hard to meet the demand," Mr. Dawson said.
News & Media
"Because I was plotting a mystery, I wanted to be very sure as to what clues I would plant".
News & Media
"We want to be very sure that it is not detrimental to the community," Mr. Gover said.
News & Media
When Jackie's mother heard about their intentions, she said: "Be very sure you know what you're doing.
News & Media
"People need to be very sure that when you go into WH Smith you do not show your boarding pass unless they will give you a discount.
News & Media
Expert writing Tips
Best practice
When offering advice or instructions, use "be very sure" to stress the importance of careful consideration and execution to avoid potential negative outcomes.
Common error
While "be very sure" is generally acceptable, avoid overuse in casual conversations. Opt for more relaxed alternatives like "make sure" or "definitely" to maintain a natural tone.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "be very sure" functions as an imperative, urging caution and thoroughness. Examples from Ludwig show its use in various contexts, from ensuring safety to making informed decisions. Ludwig AI confirms its grammatical correctness.
Frequent in
News & Media
45%
Science
20%
Wiki
18%
Less common in
Formal & Business
5%
Reference
5%
Academia
2%
Ludwig's WRAP-UP
In summary, "be very sure" is a grammatically correct and frequently used phrase that serves as a strong encouragement for caution and thoroughness. As confirmed by Ludwig AI, it's versatile enough for diverse contexts, though more common in news, science, and wiki sources. While its authoritative sources and clear meaning make it a valuable tool for emphasizing the importance of careful decision-making, avoid overuse in casual settings to maintain a natural communication style. Remember to consider alternative phrases like "ensure you're certain" or "be absolutely certain" to add nuance to your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
be absolutely certain
Emphasizes a higher degree of confidence and leaves no room for doubt.
ensure you're certain
Highlights the action of making sure, shifting the focus to the process.
make certain without fail
Stresses the importance of achieving certainty without exception.
ascertain beyond doubt
Indicates a formal and thorough verification process, leaving no uncertainty.
confirm unequivocally
Highlights that the certainty is expressed clearly and without ambiguity.
double-check rigorously
Implies a careful and thorough re-examination to ensure accuracy.
leave no room for doubt
Focuses on eliminating any possibility of uncertainty or misinterpretation.
take utmost care
Shifts the emphasis to caution and diligence in order to achieve accuracy.
exercise extreme caution
Suggests a need for careful consideration and risk management.
err on the side of caution
Indicates a preference for avoiding risks by being overly careful.
FAQs
How can I use "be very sure" in a sentence?
You can use "be very sure" to emphasize the importance of a certain action or decision. For example, "Be very sure to double-check your work before submitting it".
What phrases are similar to "be very sure"?
Similar phrases include "be absolutely certain", "ensure you're certain", or "make certain without fail". The best choice depends on the specific context and the desired level of emphasis.
Is it ever incorrect to use "be very sure"?
While grammatically correct, overusing "be very sure" in informal settings might sound unnatural. Consider using simpler alternatives like "make sure" or "definitely" in casual conversations.
What is the difference between "be very sure" and "make sure"?
"Be very sure" places more emphasis on the importance of certainty and caution, whereas "make sure" is a more general instruction to ensure something is done correctly.
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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
4.5/5
Expert rating
Real-world application tested