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
It is certain that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "It is certain that" is correct and usable in written English.
You can use this phrase when you want to emphasize that something is true or certain. For example: "It is certain that I will be there at the appointed time."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Wiki
Alternative expressions(20)
it is undeniable that
it is beyond doubt that
there is no doubt that
It is undeniable that
It is guaranteed that
It is a given that
Undoubtedly
Assuredly
I can convince you that
It is clear that
I can affirm that
I can comprehend that
It is anticipated that
I can attest to that
I can assure that
please know that
I can tell you that
I will guarantee you that
I am in a position to confirm that
It is obvious 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
60 human-written examples
It is certain that they will.
News & Media
It is certain that nationalist currents exist.
News & Media
"It is certain that some leaders were killed.
News & Media
It is certain that the Twitter bird is evolving into something different than it once was.
News & Media
It is certain that some of the heavily oiled spartina in Louisiana will die.
News & Media
It is certain that Wall Street's influence in baseball is growing.
News & Media
It is certain that I have never heard of any other, in his time or later".
News & Media
It is certain that Pankhurst's birth certificate states that she was born on July 15.
Encyclopedias
It is certain that he will want it to be lean, clean and loyal".
News & Media
It is certain that clergymen preached sermons about art, giving it a spiritual and symbolic interpretation.
Encyclopedias
It is certain that memory acts selectively and is highly deceptive.
News & Media
Expert writing Tips
Best practice
Use "It is certain that" to introduce a statement you believe is unequivocally true and supported by evidence. This phrase is effective for conveying confidence and authority.
Common error
Avoid starting too many sentences with "It is certain that", as it can make your writing sound repetitive. Vary your sentence structure by using synonyms or rephrasing the sentence to maintain reader engagement.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "It is certain that" functions as a declarative expression, introducing a statement that is presented as an established fact. It emphasizes the speaker or writer's confidence in the truth of the subsequent statement. Ludwig AI confirms its correctness and usability.
Frequent in
News & Media
36%
Science
33%
Wiki
8%
Less common in
Encyclopedias
5%
Formal & Business
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "It is certain that" is a grammatically correct and widely used expression to convey a high degree of confidence and assurance. Ludwig AI confirms that. Predominantly found in News & Media and Science, it serves to assert facts and convince audiences. While versatile, overuse should be avoided to prevent repetitiveness. Alternatives like "it is undeniable that" can add variety while maintaining the intended meaning. Remember to use this phrase when you want to emphasize the truthfulness of a statement.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
It is undeniable that
Replaces 'certain' with 'undeniable', emphasizing the impossibility of disputing the fact.
It is beyond doubt that
Emphasizes that there is no reason to doubt the stated fact.
It is without question that
Highlights the lack of any question or uncertainty surrounding the statement.
There is no doubt that
A more direct way of expressing certainty, focusing on the absence of doubt.
It is guaranteed that
Suggests a guarantee or assurance regarding the outcome.
It is assured that
Implies a sense of confidence and assurance.
It is a given that
Indicates something that is already known or accepted as true.
One can be sure that
Offers a more personal perspective of certainty.
Undoubtedly
A single-word adverb conveying certainty.
Assuredly
Another single-word adverb expressing confidence and certainty.
FAQs
How can I use "It is certain that" in a sentence?
Use "It is certain that" to introduce a statement that you are absolutely sure about. For instance, "It is certain that the sun will rise tomorrow."
What are some alternatives to saying "It is certain that"?
You can use alternatives like "it is undeniable that", "it is beyond doubt that", or "there is no doubt that" to express a similar level of certainty.
Is it grammatically correct to use "It is certain that"?
Yes, the phrase "It is certain that" is grammatically correct and commonly used in written and spoken English to express a high degree of confidence or assurance about a particular fact or event.
What's the difference between "It is certain that" and "It is likely that"?
"It is certain that" indicates a higher degree of confidence and assurance than "It is likely that". "It is certain that" suggests the outcome is guaranteed, while "It is likely that" implies a high probability but not absolute certainty.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested