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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
previously I thought
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "previously I thought" is correct and usable in written English.
You can use it when reflecting on a past belief or assumption that has since changed or been reconsidered. Example: "Previously I thought that the project would take only a month, but now I realize it will require more time."
✓ Grammatically correct
News & Media
Science
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
2 human-written examples
Previously, I thought of disability hate crime (which rose noticeably between 2008 and 2012) as the sharp edge of hardship: as the economy tanked, people's lives became harder, mean people became meaner and attacked the undefended.
News & Media
Previously I thought of bullets as being little specks, but the borderline pornographic images of hollow-points revealed they were actually as long as my middle finger, except unlike my middle finger they are designed to go very fast into someone's body, then explode.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
As I've said previously, I think the new exchanges, and particularly the generous new subsidies that are available on them, will eventually prove very popular, and Obamacare be a success on its own terms: i.e., it will substantially reduce the number of uninsured.
News & Media
He has said previously: "I think there is a lot to develop here but the infrastructure that is already in place is key.
News & Media
It's still not Alexa in the car, which is something I've said previously I think would be a good fit.
News & Media
"When I have played him previously I think it's been 6-0 and 6-1 and I knew if I could get on top of him early on then it would be tough for him".
News & Media
But previously I think it would have been a cost-effective clinic to run.
Science
As I wrote previously, I think the Richard group has "skipped the step, or are avoiding the issue, of establishing that the RGG box is important.
Science
As previously, I think it would be interesting to precise how many and which EfP sequences harbour this conserved lysine and their taxonomic distribution across bacterial phyla.
Science
DOI: http://dx.doi.org/10.7554/eLife.06234.022 [Editors' note: the author responses to the re-review follow.] Reviewer #1 (abridged): As I wrote previously, I think the Richard group has "skipped the step, or are avoiding the issue, of establishing that the RGG box is important.
Science
Whereas previously I had thought I was most at home with engineering, when my boss took a position in another company in the group, I was happy to step into his shoes.
Science & Research
Expert writing Tips
Best practice
Use "previously I thought" to clearly indicate a shift in your understanding or opinion. This signals intellectual honesty and growth to your audience.
Common error
Avoid using "previously I thought" excessively in a single piece of writing. It can make your reasoning seem inconsistent. Instead, vary your language to introduce changes in perspective.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "previously I thought" functions as a transitional expression, signaling a shift in perspective or a change in understanding. It indicates a contrast between a past belief and a current viewpoint. As confirmed by Ludwig AI, this phrase is considered grammatically correct and appropriate for use in written English.
Frequent in
News & Media
50%
Science
30%
Formal & Business
20%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "previously I thought" is a grammatically sound and useful phrase for indicating a change in perspective. Ludwig AI validates its correctness, and its use is most common in news, media, and scientific contexts. While not overly formal, its appropriate use signals intellectual honesty. Remember to avoid overuse and consider alternatives like "I used to think" or "I once believed" for variety. The phrase serves to show that your understanding has evolved.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
I used to think
Directly replaces "previously I thought" with a focus on past beliefs.
At first, I thought
Emphasizes the very beginning of one's thinking.
I once believed
Highlights a past conviction that is no longer held.
My initial thought was
Emphasizes the original idea or assumption.
I had always assumed
Indicates a long-held, now revised, assumption.
I had previously considered
Reiterates a former perspective that has changed.
I formerly considered
Focuses on a past consideration or opinion.
Earlier, I had the impression
Highlights a prior understanding or perception.
Before, my understanding was
Stresses a change in comprehension.
In the past, I imagined
Focuses on a prior conception or visualization.
FAQs
How can I use "previously I thought" in a sentence?
Use "previously I thought" to introduce a past belief or understanding that you now realize is different or incorrect. For example: "Previously I thought that all mushrooms were poisonous, but I've since learned otherwise."
What can I say instead of "previously I thought"?
You can use alternatives like "I used to think", "I once believed", or "my initial thought was" depending on the context.
Is it correct to say "formerly I thought"?
While grammatically correct, "formerly I thought" sounds more formal than "previously I thought". Consider your audience and the tone of your writing when choosing between the two.
What's the difference between "previously I thought" and "I now think"?
"Previously I thought" introduces a past belief, while "I now think" indicates your current belief. Using both together can effectively highlight a change in your 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
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested