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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
originally I thought
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "originally I thought" is correct and usable in written English.
You can use it when expressing a change in perspective or realization about a previous belief or assumption. Example: "Originally I thought that the project would take a month to complete, but now I see it will require more time."
✓ Grammatically correct
News & Media
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
39 human-written examples
They had no sense when they sent it to me where this took place... Originally I thought it was supposed to take place after "X-Men Origins: Wolverine" and before the first "X-Men".
News & Media
Originally I thought I would be alone.
News & Media
Originally I thought about teaching elementary education.
News & Media
"Originally, I thought about putting the tub on the terrace.
News & Media
Originally, I thought the release of Hatred by Destructive Creations was a joke.
News & Media
Originally I thought I would write something about my speciality, the financial industry.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
20 human-written examples
A late '80s synth originally, I think.
News & Media
I had the idea originally when I thought boats were just boats.
News & Media
I know the guys who built [the Cooper Square Hotel] originally, and I thought they miscalculated a bunch of things.
News & Media
(FGD, PLHIV) Once a person has disclosed and joined a networked group, they profit from services provided by their own, or other groups in the network: [Originally] I thought I would die.
Being originally from California, I thought to myself that that felt like an earthquake.
News & Media
Expert writing Tips
Best practice
When using "originally I thought", ensure the sentence clearly explains what changed your mind or what your current understanding is.
Common error
Avoid using "originally I thought" without providing a clear contrast or explanation of your current understanding. The phrase implies a change in perspective, so the contrasting viewpoint is essential.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "originally I thought" functions as an introductory phrase to express a retrospective viewpoint, indicating a change in understanding or perspective. This phrase sets the stage for contrasting a past belief with a current one, as shown in Ludwig.
Frequent in
News & Media
90%
Science
5%
Formal & Business
5%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "originally I thought" is a common and grammatically correct phrase used to introduce a past belief that has since changed. Ludwig shows its prevalent usage in news and media, indicating a neutral to slightly informal register. When using this phrase, ensure you clearly contrast the past belief with your current understanding to avoid ambiguity.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
at first I believed
Replaces "originally thought" with "at first believed", focusing on the initial belief.
initially, I assumed
Uses "initially" instead of "originally" and "assumed" instead of "thought", conveying a slightly less certain initial idea.
in the beginning, I imagined
Replaces "originally" with "in the beginning" and "thought" with "imagined", suggesting a creative initial conception.
I used to think
A more concise way of expressing a past belief that has changed.
I had always believed
Emphasizes the duration of the initial belief before the change.
my initial impression was
Focuses on the first impression rather than a fully formed thought.
I once considered
Suggests a fleeting initial idea that was later discarded.
my original idea was
Highlights the initial idea or plan, implying a subsequent change in direction.
to begin with, I surmised
Replaces "originally" with "to begin with" and "thought" with "surmised", indicating a guess or inference.
earlier, I had the notion
Uses "earlier" to express time, and "notion" is less formal than "thought".
FAQs
How can I use "originally I thought" in a sentence?
Use "originally I thought" to introduce a belief or assumption you held in the past that has since changed. For example, "Originally I thought the project would be simple, but now I realize it's quite complex."
What is a more formal way to say "originally I thought"?
For a more formal tone, you could use phrases like "Initially, I assumed..." or "At first, I believed...". These alternatives convey the same meaning but are suitable for professional or academic contexts.
What can I say instead of "originally I thought"?
You can use alternatives like "at first I believed", "initially I assumed", or "I used to think" depending on the context.
Is there a subtle difference in meaning between "originally I thought" and "I initially assumed"?
"Originally I thought" suggests a more considered initial viewpoint, whereas "I initially assumed" implies a less certain, perhaps more speculative, starting point.
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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
4.5/5
Expert rating
Real-world application tested