Not that I know of vs Not that I know about

Both phrases are correct, but they are used in different contexts. 'Not that I know of' is commonly used to indicate that the speaker is not aware of something, while 'Not that I know about' is less common and may sound awkward to native speakers. It's better to use 'Not that I know of' when expressing lack of knowledge.

Last updated: March 22, 2024 • 1564 views

This phrase is correct and commonly used to express lack of knowledge about something.

"Not that I know of"

This phrase is used to indicate that the speaker is not aware of something or has no information about it.

Examples:

I don't think she's coming, not that I know of.
Is the meeting canceled? Not that I know of.
Are they dating? Not that I know of.
Did you hear about the new project? Not that I know of.
Have they arrived yet? Not that I know of.

Show examples from the web [+]

Not that I know of definition: You say ' Not that I know of ' when someone has asked you whether or not something is... | Meaning, pronunciation ...
Nov 23, 2022 ... “Not that I know of,” Brown offered when asked about if he expects any players to sit out the game for a reason that is not due to an injury ...
"Do they have relatives nearby?" "Not that they know of.""Did he leave already?" "Not that I know of." Dictionary Entries Near not ...

Alternatives:

as far as I know
to the best of my knowledge
to my knowledge
from what I know
to the best of my recollection

This phrase is correct but less common. It may sound awkward to native speakers.

"Not that I know about"

This phrase can be used to express lack of knowledge, but it is less commonly used than 'Not that I know of.'

Show examples from the web [+]

Not that I know about such things, but they often want him for the cinema.
18th-century Austrian hemophiliac, not that I know too much about these fancy, antique bloods.
Not that I know very much about that particular emotion.
Why, yes, it is, Rosalyn. 18th-century Austrian hemophiliac, not that I know too much about these fancy, antique bloods.
Not now that I know all about your little plans.
I said I didn't know him, not that I didn't know about him.
Look, I'll-I'll admit it - there's not a whole lot that I know about what you and your people do.
From what I know about musicians, they're not that neat when they decide to get rid of their dames.
Not that I want the Dane to know about it, but the shmatte, he's a right guy, Tommy.
It's just something that I know about myself.
And keep in mind that I know about your expired liquor license.
She tried to kill herself at least once that I know about.
You're surprised that I know about the President and Olivia Pope.
If there was, I would know about it, and not that I would care.
I'm not allowed to reveal what I know about the password.
I know about not crossing the line.
Mainly that I'm not supposed to know about them.
Somebody broke in here last week, and I know about stuff that I wish that I didn't.
Sometimes, in the middle of a resistant problem, I write down things that I know about it.
Everything that I know about the physics of electricity Says that this device shouldn't work at all.

Alternatives:

not that I know of
as far as I know
to the best of my knowledge
to my knowledge
from what I know

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Not that I know of vs Not that I know about

"Not that I know of"

"Not that I know about"

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