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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
I know off
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'I know off' is not correct or usable in written English.
If you want to use the phrase to mean that you have memorized, or have an understanding of, something, you can use the phrase 'I know off by heart.' For example, "I know the phone number off by heart."
⚠ May contain grammatical issues
News & Media
Science
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
4 human-written examples
Parts I know off by heart, yet each time I come away with something different.
News & Media
This absence of acute biological urgency is compounded by the fact that protein complex formation/concentration does not very often (that I know off) equal phenotype.
Science
Additionally, it's unfortunate to note that in London, this practice seems to be even more prevalent than in the U.S. I know off the top of my head of a few groups that charge, including Envestors, London (in the region of £5,000), London Business Angels (around £1200 plus 5% of capital raised) and the London-based andels Den (£799 and a 5% success fee).
News & Media
But over the years he heard other stories of specific women who have said they had been assaulted by Morgan: "Three that I know, off the top of my head".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
He lays out his credentials just in case I don't know and recounts scenes from his films which I already know off by heart.
News & Media
I don't know off-hand the first instance of on-stage flight, but it may go back to the French court ballets of the 18th century.
News & Media
I don't know off-hand what kind of numbers we're talking about.
News & Media
In fact, I know it off by heart, word for word.
News & Media
"I know the off-season's going to be long," he said.
News & Media
I usually know off the top.
News & Media
"No other examiner I know would sign off on it," he said.
News & Media
Expert writing Tips
Best practice
Avoid using the phrase "I know off" in formal writing. Instead, use more grammatically correct alternatives like "I know by heart" or "I am aware of".
Common error
A common mistake is to use "off" instead of "by heart" when referring to memorization. Remember to use "I know it by heart" to correctly convey that you have memorized something.
Source & Trust
87%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "I know off" is grammatically incorrect and typically used in contexts where the speaker intends to express familiarity or memorization. Ludwig AI indicates that it's not a standard English phrase, suggesting alternatives for clarity.
Frequent in
News & Media
67%
Science
33%
Formal & Business
0%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "I know off" is generally considered grammatically incorrect in standard English. As Ludwig AI highlights, the phrase is non-standard and can lead to miscommunication. While some examples appear in news and media, it's advisable to use more accurate and widely accepted alternatives, such as "I know by heart" to express memorization or "I am aware of" to indicate general knowledge. To avoid confusion, stick to grammatically sound phrases in both formal and informal contexts. Because of its grammatical problems, "I know off" is considered a rare phrase.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
I know by heart
This indicates complete memorization of something.
I am aware of
This expresses a general understanding or knowledge of something.
I'm familiar with
Indicates a certain level of acquaintance or experience with something.
I have knowledge of
A more formal way of saying you know something.
I'm conscious of
This suggests you are mindful or cognizant of something.
I'm cognizant of
Similar to "I'm conscious of", but slightly more formal.
I have information on
This implies you possess specific details about something.
I understand
This indicates comprehension of a concept or situation.
I recognize
This suggests you can identify or acknowledge something.
I realize
This implies you have come to a certain understanding.
FAQs
What does "I know off by heart" mean?
The phrase "I know off by heart" means that you have memorized something completely. You can also simply say "I know it by heart".
What can I say instead of "I know off"?
Depending on the context, you can use alternatives like "I am aware of", "I know by heart", or "I understand".
Is "I know of" the same as "I know off"?
No, "I know of" and "I know off" have different meanings. "I know of" means you are aware of something's existence, while "I know off" is generally grammatically incorrect. You may want to use "I know by heart" instead.
How to use "I know by heart" in a sentence?
You can use "I know by heart" to indicate that you have memorized something. For example, "I know the poem by heart" or "I know the phone number by heart".
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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
87%
Authority and reliability
2.8/5
Expert rating
Real-world application tested