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
is positive that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is positive that" is not correct in standard written English.
It may be intended to express certainty or confidence about something, but it is not a commonly used construction. Example: "She is positive that she will win the competition."
⚠ May contain grammatical issues
News & Media
Science
Academia
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
And for example, if the parameter a is positive, that means that we have a growing exponential function.
"I think we present a world that is positive, that has very core traditional values, that treats young people in a very empowered, self-reliant way.
News & Media
So it had better send a message that is positive, that is optimistic, that brings a healthy state of mind to people's lives.
News & Media
Now we will show that the left side of inequality (2.19) is positive, that is, (2.25).
Then the spectral radius of the operator L is positive, that is, (r(L >0).
Γ Z ∗ ∗ → Z is positive, that is, 〈 z ∗, Γ z ∗ 〉 > 0 for all nonzero z ∗ ∈ Z ∗.
Science
Γ is positive, that is, 〈 z ∗, Γ z ∗ 〉 > 0 for all nonzero z ∗ ∈ X ∗.
Science
Critics have challenged Choi & Gulati's scales for measuring judicial quality but have offered little that is positive that would improve measurement.
Academia
The initial traveling velocity v 1 is positive, that is, the robot moves forward at t = 0.
Science
(Gamma: Z^rightarrow Z) is positive, that is, ((z^,Gamma z^)>0) for all nonzero (z^in Z^).
Then the following two conditions are equivalent: 1. Γ Z ∗ ∗ → Z is positive, that is, 〈 z ∗, Γ z ∗ 〉 > 0 for all nonzero z ∗ ∈ Z ∗. 2.
Science
Expert writing Tips
Best practice
When expressing certainty, replace "is positive that" with stronger and more grammatically correct alternatives such as "is certain that" or "is confident that" to enhance clarity and credibility.
Common error
Avoid repetitive use of "is positive that" in your writing. Vary your language by using different expressions of certainty like "is convinced that", "believes strongly that", or "has no doubt that" to make your writing more engaging and sophisticated.
Source & Trust
85%
Authority and reliability
3.2/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is positive that" functions as a declarative expression indicating a strong belief or conviction. However, Ludwig AI points out that it is grammatically questionable and suggests using alternatives for better clarity and correctness. Examples show it used across various contexts to convey certainty.
Frequent in
News & Media
54%
Science
27%
Academia
12%
Less common in
Formal & Business
4%
Wiki
2%
Unknown/unmatched sources
1%
Ludwig's WRAP-UP
In summary, while the phrase "is positive that" is used to express certainty or confidence, Ludwig AI analysis indicates that it is not correct in standard written English. It appears across various contexts like News & Media, Science, and Academia, but more grammatically sound alternatives such as "is certain that" or "is confident that" should be preferred. Opting for these alternatives will enhance the clarity and credibility of your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is certain that
Expresses a firm conviction and lack of doubt about something.
is confident that
Indicates a strong belief in one's abilities or the likelihood of a particular outcome.
is sure that
Conveys a state of being without doubt about something.
believes strongly that
Emphasizes the intensity of the belief or conviction.
is convinced that
Suggests that one has been persuaded or made certain through evidence or reasoning.
has no doubt that
Indicates a complete lack of uncertainty or skepticism.
is optimistic that
Expresses a hopeful and confident outlook regarding a future event or situation.
feels certain that
Highlights the subjective feeling of certainty.
is assured that
Implies that one has received reassurance or confirmation about something.
takes it as certain that
Conveys a sense of accepting something as undeniably true.
FAQs
What can I say instead of "is positive that"?
You can use alternatives like "is certain that", "is confident that", or "is sure that" depending on the context.
Is "is positive that" grammatically correct?
While commonly used, "is positive that" is not correct in standard written English. It's better to use more precise and grammatically sound alternatives.
How to use "is certain that" instead of "is positive that"?
Replace "is positive that" with "is certain that" to express a firm conviction. For example, instead of "He is positive that he will win", say "He is certain that he will win".
What's the difference between "is positive that" and "is confident that"?
"Is positive that" is generally considered incorrect, while "is confident that" conveys a belief in one's abilities or a favorable outcome. Use "is confident that" to express assurance and self-belief.
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
85%
Authority and reliability
3.2/5
Expert rating
Real-world application tested