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
would know better
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "would know better" is correct and usable in written English.
It can be used to suggest that someone should have more knowledge or wisdom about a situation than they are demonstrating. Example: "After all these years of experience, you would know better than to make that mistake."
✓ Grammatically correct
News & Media
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
Few would know better.
News & Media
Working there, Ashley, you would know better.
News & Media
My team would know better".
News & Media
Who would know better than he?
News & Media
Perhaps he would know better if he had visited Oregon.
News & Media
Those from the tiny Republic of Moldova would know better.
News & Media
Well, Your Majesty, you would know better than I.
News & Media
"You would know better than I," he said.
News & Media
NC: You would know better than I do.
News & Media
You would think a professional garden writer would know better.
News & Media
So you'd think that we would know better by now.
News & Media
Expert writing Tips
Best practice
Use "would know better" to express a sense of disappointment or surprise when someone acts in a way that contradicts what you believe they should know or understand. This emphasizes the expectation of higher awareness or judgment.
Common error
Avoid using "would know better" when a simple "should know better" or "ought to know better" is more appropriate. The conditional mood implies a hypothetical situation, so ensure the context warrants that nuance. Don't use it to state a simple fact or expectation.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "would know better" functions as a modal construction expressing an expectation of knowledge or understanding that is not being met. It is commonly used to express disappointment or surprise at someone's actions, implying they should have acted more wisely. Ludwig confirms this usage.
Frequent in
News & Media
90%
Formal & Business
5%
Science
3%
Less common in
Encyclopedias
1%
Wiki
0.5%
Reference
0.5%
Ludwig's WRAP-UP
The phrase "would know better" is a common and grammatically correct way to express that someone should have acted with more wisdom or understanding. Ludwig AI confirms that its usage is appropriate across various contexts, primarily in News & Media. The phrase carries a tone of disappointment or mild rebuke, suggesting that the person's actions are inconsistent with their expected knowledge or experience. While alternatives like "ought to know better" or "should have known better" exist, "would know better" emphasizes the hypothetical nature of the situation and the surprise at the person's actions. When writing, ensure the context warrants the conditional mood and that a simpler phrase isn't more appropriate.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
ought to know better
This phrase carries a stronger sense of obligation or moral imperative.
should have known better
This phrase implies a past mistake and a sense of regret.
would have anticipated
Expresses the expectation that someone would have foreseen something.
might have known better
This suggests a possibility of knowing better, often used sarcastically.
should have anticipated
Suggests that someone failed to foresee something they should have.
could have predicted
Focuses on the ability to foresee an outcome, suggesting a lack of foresight.
might have anticipated
Emphasizes the ability to anticipate a situation and prepare accordingly.
exercise better judgment
Encourages making wiser choices based on available information.
have the good sense
Highlights the possession of common sense or practical intelligence.
possess more wisdom
Implies having a deeper understanding and insight.
FAQs
How can I use "would know better" in a sentence?
You can use "would know better" to express that someone should have acted with more knowledge or wisdom, for example: "After all his experience, he "would know better" than to make such a rookie mistake."
What does "would know better" imply about the person being described?
It suggests that the person is expected to have a certain level of understanding or experience, and their actions are inconsistent with that expectation. It often carries a tone of disappointment or mild rebuke.
Are there situations where "should know better" is more appropriate than "would know better"?
Yes, "should know better" is more suitable when expressing a direct expectation or obligation. "Would know better" implies a hypothetical or conditional situation, suggesting surprise or disappointment that someone didn't act as expected. Use "should know better" to convey direct advice.
What are some alternatives to "would know better" that I can use in my writing?
Depending on the context, you could use alternatives like "ought to know better", "should have known better", or phrases highlighting a lack of good judgment or foresight.
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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested