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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
had assumed that
Grammar usage guide and real-world examplesUSAGE SUMMARY
"had assumed that" is a correct and usable phrase in written English.
It is typically used in past tense sentences to express a belief or idea that was held in the past but has since been proven wrong or changed. Example: "Sarah had assumed that John was still living in the city, but she was surprised to find out that he had actually moved to the countryside."
✓ Grammatically correct
News & Media
Academia
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 had assumed that he knew.
News & Media
Frankly, I had assumed that too.
News & Media
Before Wednesday, many preservationists had assumed that it would.
News & Media
Indeed, Gerald had assumed that he was a teen-ager.
News & Media
I had assumed that one would sing hymns during evensong.
News & Media
Rwarakabije had assumed that they would all be killed.
News & Media
I had assumed that only famous surfers rode Waimea.
News & Media
I had assumed that he would pick three spades.
News & Media
But people had assumed that the law was enforced impartially.
News & Media
Lorenz had assumed that the difference, only one part in a thousand, would be inconsequential.
Academia
We had assumed that a small ship focused on land tours would skimp on talent.
News & Media
Expert writing Tips
Best practice
Use "had assumed that" to introduce a statement that reflects a past belief which later proved to be inaccurate or incomplete. This highlights the shift in understanding.
Common error
Avoid presenting what you "had assumed that" as an established fact without clarifying that it was, in reality, an assumption. Always contextualize the statement to show the change in perspective.
Source & Trust
91%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "had assumed that" functions as a connector introducing a subordinate clause expressing a past belief or expectation. It is typically followed by a statement that contradicts or modifies that initial assumption. The auxiliary verb 'had' indicates past perfect tense, suggesting the assumption occurred before another point in time, often implying a change in understanding. Ludwig provides numerous examples illustrating this function.
Frequent in
News & Media
74%
Academia
18%
Formal & Business
8%
Less common in
Science
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "had assumed that" is a grammatically sound phrase used to introduce a past belief that was later found to be incorrect or incomplete. Ludwig AI validates its correctness and widespread use. It functions as a connector, setting up a contrast between a former belief and a current understanding. Found frequently in News & Media and Academic contexts, "had assumed that" serves the purpose of providing context and highlighting shifts in perspective. When using the phrase, remember to ensure clarity by emphasizing that what you "had assumed that" was, in fact, an assumption and not a confirmed fact.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
had presumed that
Replaces "assumed" with "presumed", implying a slightly stronger belief based on probability.
had supposed that
Substitutes "assumed" with "supposed", suggesting a less certain or more tentative belief.
had believed that
Replaces "assumed" with "believed", indicating a firmer conviction at the time.
had expected that
Uses "expected" instead of "assumed", focusing on anticipation rather than a settled belief.
had taken for granted that
Emphasizes the lack of questioning or scrutiny behind the initial belief.
had figured that
Replaces "assumed" with "figured", giving it a more informal tone, suggesting a casual conclusion.
had imagined that
Substitutes "assumed" with "imagined", implying the belief was based on speculation rather than evidence.
had understood that
Uses "understood" to suggest that the belief was based on information received, although incorrect.
had been under the impression that
More formal and elaborate way of saying "had assumed that", indicating a mistaken understanding.
had been of the opinion that
Similar to "had believed", but more formal, indicating a considered judgment.
FAQs
How can I use "had assumed that" in a sentence?
Use "had assumed that" to introduce a past belief that was later proven wrong or changed, like: "I "had assumed that" the meeting would be short, but it lasted for hours."
What's a more formal alternative to "had assumed that"?
More formal alternatives include "had presumed that" or "had been under the impression that". These phrases provide a similar meaning but are suitable for more formal contexts.
Is "had assumed that" grammatically correct?
Yes, "had assumed that" is grammatically correct. The auxiliary verb "had" with the past participle "assumed" is correct and forms the past perfect tense, which is appropriate for describing a past belief. Ludwig AI confirms this.
What is the difference between "had assumed that" and "assumed that"?
"Had assumed that" indicates a past belief that is no longer held or has been proven wrong, using the past perfect tense. "Assumed that" can refer to a current belief or a belief held at some point, without necessarily implying a change in perspective.
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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
91%
Authority and reliability
4.6/5
Expert rating
Real-world application tested