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 literally know
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "I literally know" is correct and usable in written English.
It can be used to emphasize the speaker's certainty or knowledge about a particular fact or situation. Example: "I literally know the answer to that question; I've studied it extensively."
✓ 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
9 human-written examples
"I literally know them.
News & Media
I literally know what she's going through".
News & Media
I like to think I literally know parts of Montreal inside and out.
News & Media
Let's hope not because, unlike the claim I made in my hilarious joke earlier, I literally know dick-all about him.
News & Media
I literally know as much as you guys.
News & Media
"I literally know nothing about this new season, but if I had my dream, I just want one solid scene with my husband.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
51 human-written examples
I literally knew no one who had anything bad to say about him.
News & Media
"I literally knew no other student who claimed to be queer (or appeared to be — it was some time before queer confessions became as common as weak jokes)," he writes.
News & Media
My decision to move from Kansas City to California was a tough one as I literally knew no one who lived locally.
News & Media
I literally knew how Katherine Johnson felt in the inside.
News & Media
And then when I heard that "John Carter of Mars" was being made, I literally knew the makeup guy on it, Bill Corso.
News & Media
Expert writing Tips
Best practice
Use "I literally know" to emphasize your direct and personal knowledge of a subject, especially when you want to convey a sense of certainty or familiarity.
Common error
Avoid using "literally" to intensify a statement that is not actually true. Ensure that your knowledge is genuine when using this phrase, as overuse can dilute its impact.
Source & Trust
87%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "I literally know" is to make a declarative statement, expressing the speaker's certainty or specific knowledge about something. This is evident in Ludwig's examples, where the phrase is used to emphasize the speaker's familiarity or understanding.
Frequent in
News & Media
100%
Less common in
Science
0%
Formal & Business
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "I literally know" is a phrase used to emphasize direct and personal knowledge. While Ludwig confirms it's grammatically correct and usable, it is advisable to use it precisely and avoid overusing "literally" in non-literal senses, as this can diminish its impact. The phrase is commonly found in news and media sources to convey certainty. Alternatives like "I genuinely know" or "I absolutely know" can offer similar emphasis. Overall, using "I literally know" effectively relies on context and genuine knowledge to enhance communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
I genuinely know
Replaces 'literally' with 'genuinely' to convey a sense of sincere knowledge.
I truly know
Substitutes 'literally' with 'truly' to emphasize the truthfulness of the knowledge.
I absolutely know
Replaces 'literally' with 'absolutely' to highlight the complete certainty of the knowledge.
I definitely know
Uses 'definitely' instead of 'literally' to show a firm conviction.
I certainly know
Employs 'certainly' in place of 'literally' to express confidence in the knowledge.
I really know
Uses 'really' to emphasize the depth of the knowledge, instead of 'literally'.
I actually know
Replaces 'literally' with 'actually', focusing on the reality of the knowledge.
I completely know
Uses 'completely' instead of 'literally' to suggest full and comprehensive knowledge.
I precisely know
Replaces 'literally' with 'precisely' to indicate exactness in knowledge.
I understand perfectly
Rephrases the sentence to focus on understanding rather than simply knowing, maintaining a similar meaning.
FAQs
How can I use "I literally know" in a sentence?
Use "I literally know" to express direct or personal knowledge of something. For example, "I literally know the author of that book". It emphasizes your certainty.
What can I say instead of "I literally know"?
You can use alternatives like "I genuinely know", "I truly know", or "I absolutely know" depending on the context and the level of emphasis you want to convey.
Is it correct to use "literally" to emphasize a point even if it's not entirely true?
While the use of "literally" to add emphasis is common, it is often criticized because it deviates from the word's original meaning. Using it in its true sense maintains clarity and precision.
What's the difference between "I literally know" and "I really know"?
"I literally know" suggests a direct, factual knowledge. In contrast, "I really know" implies a deeper understanding or a strong conviction but does not necessarily mean direct factual knowledge. Consider which is more accurate for your intended meaning.
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
87%
Authority and reliability
4.1/5
Expert rating
Real-world application tested