Used and loved by millions
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
I established that
Grammar usage guide and real-world examplesUSAGE SUMMARY
"I established that" is a correct and usable phrase in written English.
It is typically used to introduce a fact or conclusion that you have determined. For example, "I established that the story was false after speaking with eye witnesses."
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
I met that
I data that
I confirmed that
I understand that
I informed that
I tweeted that
I acknowledge that
I grant that
I approved that
I concluded that
I admit that
It became clear to me that
I demonstrated that
I consent that
I stipulate that
I took that
I earned that
I proved that
I concerned that
I considered that
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
12 human-written examples
Eventually I established that I was reacting to a buried cellphone tower.
News & Media
In The Messy Business of Conception (pdf), I established that the criteria for IVF treatment was random to say the least.
News & Media
In research I carried out for Essex University in 1993 (five years before the HRA was passed), I established that the ECHR was cited in only 173 domestic cases in the higher courts in 21 years.
News & Media
I wanted, and was determined, to walk everywhere I wanted to go, so once I established that the rest simply became part of the process.
News & Media
Once I established that one of my talents was engaging in inappropriate sexual relationships, I decided that the best avenue for procuring funds was the adult film industry.
News & Media
Early on, I established that Sundays would be my cheat day -- a day where I could eat whatever I wanted, no matter how terrible, for one meal.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
48 human-written examples
Our experiments with WT calpain-I establish that over-expression of calpain-I has strong negative consequences for VEGF neovascular network integration both in vivo and in vitro.
Science
"It was important for me that I establish that, as much research as I did and close as I tried to stay to the truth, it is a point of view".
News & Media
More significant, however, is the substantive increase in Fmax produced by increasing SYBR Green I, establishing that reaction fluorescence intensity is dependent on SYBR Green I quantity.
Science
Is it established that TolA does not form aggregates or interact non-specifically through its hydrophobic transmembrane helix under these conditions?
Science
It's New Zealand v England - I establish that much, along with the fact that NZ are batting and England bowling.
News & Media
Expert writing Tips
Best practice
Use "I established that" when you want to clearly state that you have proven or determined something through investigation or evidence. It adds a personal element to the statement of fact.
Common error
Avoid using "I established that" in casual conversation. Opt for simpler phrases like "I found out" or "I realized" to maintain a natural tone.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "I established that" serves as a declarative statement, asserting that the speaker has proven or determined something to be true. As Ludwig AI confirms, the phrase is correct and usable. The examples illustrate its use in conveying conclusions based on evidence or research.
Frequent in
News & Media
40%
Science
40%
Encyclopedias
10%
Less common in
Wiki
10%
Formal & Business
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "I established that" is a grammatically correct phrase used to declare a proven fact or conclusion, as affirmed by Ludwig AI. While it is versatile, appearing in contexts ranging from news reports to scientific publications, it is most fitting for neutral to formal settings. Common alternatives include "I determined that" and "I concluded that". When using the phrase, ensure it aligns with the formality of your writing and accurately reflects that you have indeed proven something.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
I determined that
Focuses on the process of reaching a decision or conclusion after investigation.
I ascertained that
Implies a more formal and careful investigation leading to a confirmed fact.
I concluded that
Emphasizes the final judgment or inference drawn from evidence or reasoning.
I confirmed that
Suggests verifying something previously uncertain or suspected.
I demonstrated that
Highlights the act of proving something through evidence or experiment.
I proved that
Indicates a definitive and irrefutable demonstration of truth.
I found that
A more general way of stating a discovery or observation.
It became clear to me that
Focuses on the gradual realization of a fact or understanding.
My research showed that
Specifically refers to findings from a research process.
The evidence suggests that
Attributes the conclusion to the presented evidence rather than personal action.
FAQs
What does "I established that" mean?
The phrase "I established that" means that you have proven or determined something to be true, usually after investigation or consideration. It indicates a conclusion you've reached based on evidence or reasoning.
How can I use "I established that" in a sentence?
Use "I established that" to introduce a fact or conclusion you've determined. For example, "I established that the data supported my hypothesis."
What can I say instead of "I established that"?
You can use alternatives like "I determined that", "I ascertained that", or "I concluded that" depending on the context.
Is "I established that" formal or informal?
The phrase "I established that" tends to be more formal and is suitable for academic, professional, or news-related contexts. In informal settings, simpler alternatives like "I found out" may be more appropriate.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested