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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
I've confirmed
Grammar usage guide and real-world examplesAlternative 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
43 human-written examples
"I've confirmed that the letter was delivered to them".
News & Media
And I've confirmed that agreement with the Eugene O'Neill estate".
News & Media
The legislative intent of Dodd-Frank on this point is clear; I've confirmed this by asking legislators what they intended.
News & Media
Update: I've confirmed that Khemlani and Loughlin will be Hearst's board reps; Black is not on the board.
News & Media
(Update: Murphy wrote to me after this post went up to dispute this. Her quote is accurate and in context, as I've confirmed in my notes.
News & Media
I've confirmed, by asking several people of my acquaintance, that I wasn't alone in lacking an appetite for all those preening flowers, foodstuffs, and bric-a-brac.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
16 human-written examples
"I have confirmed myself that CIA planes landed in Poland..
News & Media
It also claimed I had confirmed acceptance of the fare – but I hadn't.
News & Media
"I have confirmed that this was a heavy and deadly bombardment," he said.
News & Media
I have confirmed with the campaign as late as 3 p.m. this afternoon".
News & Media
"I have confirmed with his lawyers that our offer of consular assistance stands should he require it".
News & Media
Expert writing Tips
Best practice
Follow the phrase with a 'that' clause or a direct object to clearly state what information has been verified.
Common error
Avoid using "I've confirmed" when you are referring to a verification that happened at a very specific, finished time in the past without connection to the present. In such cases, use the simple past "I confirmed" instead.
Source & Trust
91%
Authority and reliability
4.9/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "I've confirmed" functions as a present perfect construction combining the first-person subject "I" with the auxiliary verb "have" (contracted) and the past participle of "confirm". In Ludwig, it is frequently seen introducing subordinate clauses that provide verified data points.
Frequent in
News & Media
75%
Formal & Business
15%
Science
10%
Less common in
Wiki
5%
Social Media
3%
Reference
2%
Ludwig's WRAP-UP
Analysis of data from Ludwig shows that "I've confirmed" is a staple phrase in journalism and professional communications. It effectively bridges the gap between an inquiry and a factual conclusion. Because it utilizes the present perfect tense, it emphasizes that the verification is complete and the resulting information is ready for use now. Its high prevalence in top-tier sources like The New York Times and TechCrunch underscores its utility in reporting investments, personnel changes and factual updates. Writers should use it confidently to assert authority over the information they are presenting.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
I've verified
Suggests a more technical or systematic check for accuracy
I've corroborated
Specifically implies supporting a statement or theory with additional evidence
I've validated
Commonly used in scientific or data-driven contexts to prove validity
I've established
Implements a sense of foundational proof or making a fact certain
I've ascertained
A more formal alternative suggesting a process of discovery
I've substantiated
Used when providing physical or concrete evidence for a claim
I've cross-checked
Emphasizes that multiple sources were used for verification
I've authenticated
Specifically used for proving that something is genuine or original
I've ensured
Focuses on making sure a specific outcome or condition is met
I've made sure
A more conversational and less formal way to express verification
FAQs
How do I use "I've confirmed" in a sentence?
You can use it to introduce a fact you have checked, for example: "I've confirmed that the meeting has been rescheduled for Tuesday".
What can I say instead of "I've confirmed"?
Depending on the context, you can use alternatives like "<a href="/s/I've+verified" target="_blank" rel="alternative">I've verified", "<a href="/s/I've+corroborated" target="_blank" rel="alternative">I've corroborated", or "<a href="/s/I've+made+sure" target="_blank" rel="alternative">I've made sure".
What is the difference between "I've confirmed" and "I confirmed"?
"I've confirmed" is the present perfect form, used when the verification has current relevance, while "<a href="/s/I+confirmed" target="_blank" rel="alternative">I confirmed" is the simple past, usually tied to a specific past time.
Is "I've confirmed" appropriate for formal emails?
Yes, it is a professional and standard way to communicate that you have checked information. If you want to sound even more formal, you might consider "<a href="/s/I've+ascertained" target="_blank" rel="alternative">I've ascertained".
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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
4.9/5
Expert rating
Real-world application tested