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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 am almost positive
Grammar usage guide and real-world examplesUSAGE SUMMARY
"I am almost positive" is a correct and usable phrase in written English.
It can be used when you are certain or very confident about something, but not entirely certain. For example: "I am almost positive Deanna is the person who designed this website."
✓ 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
6 human-written examples
"I am almost positive that those mines had been there for a day or two".
News & Media
I am almost positive that those four episodes were leaked by HBO themselves.
News & Media
I was, I am almost positive, the only black person in the theater.
News & Media
By then I am almost positive acid wash denim will have come back in style.
News & Media
To this point: I am almost positive that I have seen every episode of Kidd Video, yet I cannot remember the specifics of any given episode other than, "Master Blaster is mean," and, "I remember they befriended a fairy named Glitter who could help the band by sneezing," of all things.
News & Media
I think if Jane Austen were to start a blog about modern marriage, which my nerd brain imagines she'd call Netherfield Nuptials, I am almost positive that it would start with the phrase: "It is a truth universally acknowledged that a couple engaged to be married must be in want of an engagement photo shoot".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
54 human-written examples
(I'm almost positive this was a lie).
News & Media
"I hope they do, I'm almost positive they do.
News & Media
"Four years later, I'm almost positive I'm going with Joe again".
News & Media
"I think I've got some damage — I'm almost positive," he said.
News & Media
— YOU, ME & CHARLIE (@YMandCharlie) February 27 , 2012I never saw The Artist and I'm almost positive you didn't either.
News & Media
Expert writing Tips
Best practice
Use "I am almost positive" when you want to express a high degree of confidence without claiming absolute certainty. This phrasing acknowledges the possibility of being incorrect, maintaining a tone of reasonableness.
Common error
Avoid using "I am almost positive" when the situation requires absolute certainty or a definitive statement. In scenarios demanding precision, either confirm the information unequivocally or use a more cautious phrasing.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "I am almost positive" functions as an assertion of belief with a degree of uncertainty. It's used to express a strong conviction while acknowledging a possibility of error. As Ludwig AI indicates, the phrase is grammatically correct and usable.
Frequent in
News & Media
80%
Science
10%
Formal & Business
5%
Less common in
Academia
3%
Encyclopedias
1%
Wiki
1%
Ludwig's WRAP-UP
The phrase "I am almost positive" serves as a useful tool for expressing strong belief without absolute certainty. Grammatically sound and relatively common, as confirmed by Ludwig, it finds frequent use in news media and informal conversation. When you need to convey conviction while leaving room for potential error, "I am almost positive" provides a balanced and reasonable tone. Remember that similar phrases like "I am reasonably sure" or "I am fairly certain" can provide subtle variations in emphasis or formality.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
I am reasonably sure
Replaces "almost positive" with "reasonably sure", indicating a slightly lower degree of certainty.
I am fairly certain
Similar to "reasonably sure", but emphasizes the fairness or justifiability of the certainty.
I am pretty sure
A more informal alternative, using "pretty" to convey a good level of confidence.
I am virtually certain
Indicates a very high degree of confidence, close to absolute certainty.
I feel quite confident
Shifts the focus to a feeling of confidence rather than a statement of certainty.
I have a strong feeling that
Expresses certainty as a strong intuition or feeling.
I'm convinced that
Expresses a firm belief in something.
I'm under the impression that
Suggests certainty based on an overall impression or understanding.
I'd bet my bottom dollar
An idiomatic expression indicating strong belief or certainty.
It is my understanding that
Formally conveys what one believes to be true based on information received.
FAQs
How can I use "I am almost positive" in a sentence?
You can use "I am almost positive" to express a high degree of certainty about something, while still acknowledging a small chance of being wrong. For example, "I am almost positive I locked the door, but I should double-check to be sure."
What's the difference between "I am almost positive" and "I am sure"?
"I am sure" implies a higher level of certainty than "I am almost positive". The latter suggests a strong belief, but allows for the possibility of error.
Which is correct, "I am almost positive" or "I am mostly positive"?
"I am almost positive" is the more common and idiomatic expression. "I am mostly positive" is grammatically correct but less frequently used and might sound slightly awkward.
What can I say instead of "I am almost positive" to sound more formal?
For a more formal tone, you could use phrases like "I am reasonably sure", "I am fairly certain", or "I am virtually certain" depending on the level of confidence you want to convey.
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested