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 • 1430 views

Not that I know of

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

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

Not that I know about

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

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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