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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
could have realized
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "could have realized" is correct and usable in written English.
It is typically used to express a missed opportunity or a potential understanding that did not occur in the past. Example: "If I had paid more attention, I could have realized the mistake before it was too late."
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
might have understood
should have recognized
would have known
might have perceived
failed to appreciate
could have known
could have fixed
could have stopped
could be realized
could have left
could have stayed
could have pretended
could have punched
could have spoken
could have waltzed
could have predicted
could have died
could have escaped
could have scored
could have kept
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
23 human-written examples
It could have realized the worst fears of all those who saw its posters.
News & Media
Alternatively, UBS could have realized many large losses and only a few large gains.
News & Media
But according to a new study, the Páramos are even more remarkable than von Humboldt could have realized.
News & Media
I could have realized these people with my fun and games with their real-life stories, while Sir Quentin was destroying them with his needling after frankness.
News & Media
And Sony's public relations people learned to bite their tongues as he repeatedly criticized the corporation for its stodginess -- even while noting that the only place in Japan he could have realized his full potential was at Sony.
News & Media
And the amount he received from the state not to develop his land was 60percentt of what he could have realized had he sold his credits on the open market to a developer elsewhere in the state.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
37 human-written examples
Which, of course, we could've realized from the Cheesecake Factory admission.
News & Media
Who could've realized that that song with that tune and those lyrics could also be almost a folk rocker?
News & Media
But it's also comical, since you'd think any idiot could've realized how staged this all seemed.
News & Media
You, however, could not possibly know the fear these words have etched in my son's heart, nor could you have realized how he sobbed when we asked him if he would consider taking the United flight instead.
News & Media
How could he have realized this only now?
News & Media
Expert writing Tips
Best practice
Use "could have realized" to express a missed opportunity for understanding or a potential realization that did not occur due to specific circumstances. For example: "If I had studied harder, I "could have realized" my academic goals."
Common error
Avoid using "could have realized" interchangeably with "would have realized" or "should have realized". "Would have realized" implies a certainty if conditions were different, while "should have realized" implies an obligation or expectation. "Could have realized" suggests a possibility that wasn't fulfilled.
Source & Trust
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "could have realized" functions as a modal verb construction expressing a past possibility or potential that was not achieved. As Ludwig AI confirms, this phrase is grammatically correct and indicates a missed opportunity for understanding or awareness. Examples in Ludwig illustrate its use in diverse contexts, from academic insights to news reporting.
Frequent in
News & Media
70%
Science
20%
Formal & Business
10%
Less common in
Wiki
0%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "could have realized" is a grammatically sound and frequently used phrase to denote a missed opportunity for understanding or awareness in the past. Ludwig AI confirms its correctness and versatility across various contexts. It is most commonly found in News & Media, Science and Formal & Business settings. While it is generally neutral, it's essential to differentiate its meaning from similar modal verbs like "would have realized" and "should have realized" to ensure accurate communication. Using this expression wisely will enrich your text with nuance and insight.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
might have understood
Emphasizes a potential understanding that didn't happen.
should have recognized
Indicates a failure to acknowledge something that was apparent.
would have known
Highlights a lack of knowledge about something that could have been acquired.
might have perceived
Focuses on a potential perception that did not occur.
were capable of understanding
Highlights the ability to understand something that wasn't used.
had the potential to grasp
Emphasizes a missed opportunity to understand something.
failed to appreciate
Indicates a lack of understanding or recognition of value.
missed the opportunity to see
Highlights the fact that one had missed the opportunity to perceive something
didn't manage to grasp
Highlight the missed opportunity to understand the issue.
were unable to comprehend
Emphasizes an inability to understand something.
FAQs
How to use "could have realized" in a sentence?
Use "could have realized" to indicate a past potential or possibility that was not achieved. For example, "If I had listened more carefully, I "could have realized" the truth."
What can I say instead of "could have realized"?
You can use alternatives like "might have understood", "should have recognized", or "would have known" depending on the context.
Which is correct, "could have realized" or "could realize"?
"Could have realized" refers to a past unrealized potential. "Could realize" refers to a present or future potential. For example: "I could realize my dreams if I work hard enough" versus "I "could have realized" my dreams if I had worked harder".
What's the difference between "could have realized" and "should have realized"?
"Could have realized" implies a potential that wasn't achieved, while "should have realized" implies a failure to meet an obligation or expectation. One expresses possibility, while the other expresses duty.
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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
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested