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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 thought
Grammar usage guide and real-world examplesUSAGE SUMMARY
'could have thought' is correct and usable in written English.
You can use this phrase when you are talking about something that did not happen in the past, despite the fact that it could have happened. For example: I could have thought to bring an extra coat, but I forgot.
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
would have thought
might have considered
may have imagined
would have believed
might have assumed
may have presumed
would have expected
might have suspected
would have guessed
might have conceived
could have perceived
could have envisioned
could have guessed
could have supposed
could have insisted
could have believed
could have suggested
could have known
could have indicated
could have acknowledged
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
57 human-written examples
Who could have thought it?
News & Media
One could have thought that it bored him, happiness".
News & Media
"I never could have thought my constitution was so strong.
News & Media
I wish I could have thought of it last night.
News & Media
I never could have thought I'd reach this high mark".
News & Media
The police could have thought Ramon's camera was a gun".
News & Media
Whoever could have thought that a diner was fast enough?
News & Media
I don't suppose everyone could have thought that.
News & Media
Who could have thought enough of her to write a poem to her.
News & Media
My position is, this is a remarkably successful insurrection, more than anybody ever could have thought".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
1 human-written examples
GIC and Insight are the best investors we could have thought of.
News & Media
Expert writing Tips
Best practice
Combine "could have thought" with adverbs like 'easily', 'reasonably', or 'logically' to add nuance and precision to your expression of possibility.
Common error
Avoid the common mistake of writing 'could of' instead of 'could have'. Remember that 'could have' is the correct grammatical form, while 'could of' is a phonetic misspelling.
Source & Trust
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "could have thought" functions as a modal verb construction indicating a possibility or speculation about a past action or state of mind. Ludwig shows many examples of its usage in expressing hypothetical scenarios or reflecting on past beliefs.
Frequent in
News & Media
74%
Science
14%
Formal & Business
6%
Less common in
Wiki
2%
Encyclopedias
1%
Reference
3%
Ludwig's WRAP-UP
In summary, the phrase "could have thought" is a grammatically sound and frequently used construction to express past possibilities and speculations, as confirmed by Ludwig AI. It appears most often in news and media, showcasing its versatility in diverse contexts. To enhance clarity, avoid the common error of using 'could of' instead of 'could have'. Alternatives such as "might have considered" or "may have presumed" offer increased formality. Ultimately, understanding these nuances ensures effective communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
might have considered
Emphasizes the possibility of a past consideration, suggesting a slightly more deliberate thought process.
may have imagined
Focuses on the possibility of a past mental image or scenario that could have been conceived.
would have believed
Highlights the potential for a past belief, indicating a stronger level of conviction than just a thought.
might have assumed
Suggests a past assumption, implying a lack of concrete evidence or thorough consideration.
may have presumed
Similar to 'assumed', but carries a slightly more formal tone and suggests a basis in probability.
would have expected
Highlights an anticipation of a particular outcome, differing from simply thinking about something.
might have suspected
Suggests a past suspicion, implying a negative connotation or concern.
may have envisioned
Focuses on a past visualization of a future scenario, implying a more detailed mental picture.
would have guessed
Implies a past attempt to predict or estimate something, often based on limited information.
might have conceived
Emphasizes the possibility of a past formation of an idea or plan.
FAQs
How can I use "could have thought" in a sentence?
You can use "could have thought" to express speculation about what someone might have believed or considered in the past. For example, "He "could have thought" the meeting was on Tuesday" suggests he mistakenly believed that.
What's a more formal alternative to "could have thought"?
More formal alternatives include "might have considered", or "may have presumed". These options add a layer of sophistication suitable for academic or professional contexts.
Is there a difference between "could have thought" and "would have thought"?
Yes, "could have thought" indicates a possibility that something was considered, while "would have thought" suggests a stronger expectation or belief. For instance, "I "could have thought" he was joking" implies uncertainty, whereas "I "would have thought" he was serious" suggests a prior expectation.
What can I say instead of "I could have thought of that"?
Alternatives include "I might have considered that", or "That idea "could have occurred to me"". These variations express a similar sentiment of missed opportunity or recognition.
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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
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested