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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
thought to
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "thought to" is correct and usable in written English.
It is typically used to indicate a belief or assumption about something that is not definitively proven. Example: "The ancient ruins are thought to be over a thousand years old."
✓ Grammatically correct
News & Media
Encyclopedias
Wiki
Science
Alternative expressions(20)
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
60 human-written examples
"I thought to shoot".
News & Media
I thought to make.
News & Media
She never thought to remarry.
News & Media
I thought to myself, Seriously?
News & Media
He was thought to be dead.
News & Media
Another 30 are thought to be injured.
News & Media
"Damn it," Bond thought to himself.
News & Media
Hillary Clinton was thought to have won.
News & Media
Capitalism itself is thought to be toxic.
News & Media
He is thought to have visited Rome.
Encyclopedias
"I love space," I thought to myself.
News & Media
Expert writing Tips
Best practice
Use "thought to" when you want to convey a belief or assumption without stating it as a definitive fact. This is especially useful in academic or journalistic contexts where objectivity is important.
Common error
Avoid relying too heavily on passive constructions like "thought to be". While grammatically correct, overuse can make your writing sound weak or indirect. Consider whether an active voice construction would be more impactful.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "thought to" functions as a passive construction, indicating a belief, assumption, or estimation that isn't definitively proven. It often appears when presenting information without explicitly stating the source of the belief, as seen in Ludwig's examples.
Frequent in
News & Media
36%
Encyclopedias
11%
Wiki
10%
Less common in
Science
8%
Formal & Business
2%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "thought to" is a versatile passive construction employed to express beliefs, assumptions, or estimations without asserting them as definitively proven facts. Ludwig AI indicates that it's grammatically correct and commonly used. Its frequent appearance in news and media, encyclopedias, and wiki articles underscores its value in presenting information with a degree of uncertainty. When writing, it's useful to remember that alternatives like "believed to be" or "considered to be" exist, which can add subtle differences in meaning or formality, however overusing passive voice should be avoided.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
believed to be
Emphasizes a state of being based on widespread belief, similar to "thought to" but with a stronger connotation of acceptance.
considered to be
Highlights a formal assessment or judgment, suggesting a more deliberate evaluation than "thought to".
regarded as
Implies a specific viewpoint or opinion held by a particular group or individual, differing from the more general "thought to".
presumed to be
Suggests an assumption based on probability, where evidence is lacking but likely, unlike the more neutral "thought to".
deemed to be
Indicates an official decision or judgment, making it more formal than "thought to".
understood to be
Focuses on a shared understanding or consensus, implying broader agreement than "thought to".
suspected to be
Implies a degree of doubt or uncertainty, where the belief is based on limited evidence, unlike the more neutral "thought to".
assumed to be
Highlights the act of taking something for granted without proof, distinguishing it from the more reflective "thought to".
hypothesized to be
Introduces a tentative explanation used as a basis for further investigation, making it more scientific than "thought to".
estimated to be
Indicates an approximate calculation or judgment, focusing on quantity or value rather than general belief like "thought to".
FAQs
How can I use "thought to" in a sentence?
The phrase "thought to" is generally used to express an assumption or belief that isn't definitively proven. For example, "The missing artifact is thought to be hidden in the catacombs."
What's a more formal way to say "thought to"?
For a more formal tone, you can use phrases like "considered to be", "deemed to be", or "regarded as". Each carries a slightly different nuance of formality and judgment.
Is it always necessary to specify who is doing the thinking when using "thought to"?
No, it is not always necessary. The passive voice construction with "thought to" often implies a general or collective belief, making it unnecessary to specify the source of the belief unless it's crucial for context.
What are common errors to avoid when using the phrase "thought to"?
A common error is using "thought to" when you have definitive proof of something. "Thought to" implies uncertainty, so use more direct language when certainty exists. Also avoid overuse, as it can make writing sound passive and vague.
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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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested