'None that I know of' vs 'Not that I know of'

[Tom]

Hello everybody

Are the given expressions same?

When can they possibly be used? Please answer in detail.

None that I know of
Not that I know of

Thanks in advance

Tom

[Yankee]

Hi Tom

Where in the world do all your questions come from? ;)

Your two sentences are similar in meaning, but the questions they answer might have different formats.

Examples:

Both of your sentences are possible here:
Q: Did he have any problems downloading the program?
A: None that I know of.
-- OR --
A: Not that I know of.

(The "None that I know of." sentence follows a "yes/no" question with the words "any + noun" in it.)

Only one of your sentences is possible here:
Q: Has he received the bill yet?
A: Not that I know of.

Amy
_________________
"Nearly all men can stand adversity, but if you want to test a man's character, give him power." ~ Abraham Lincoln

[Tom]

Thank you Amy

You are really a great help!

Can you shed some more light on the subject?

For example, you wrote:

Only one of your sentences is possible here:
Q: Has he received the bill yet?
A: Not that I know of.

If I add any in the sentence, then? i.e,
*HAS HE RECEIVED ANY BILL YET?(what should be the answer now?)

To cut a long story short, should I understand that NOT THAT I KNOW OF can be used in any format of the question, but NONE THAT I KNOW OF can only be used with any+noun,?

Waiting as usual

Tom

[Yankee]

Hi Tom

Normally it would be "any + plural noun" (countable noun) or "any + uncountable noun" in the question.

The word "none" in the answer basically means "not any of them" or (with an uncountable noun) "not any of it".

The word "the bill" doesn't work for the "None that I know of" answer because you would be asking only about one specific bill.

So:
Q: HAS HE RECEIVED ANY BILL YET? - or - HAS HE RECEIVED ANY of the BILLs YET?
A: None that I know of.
A: Not that I know of.

Sorry, Tom, there may be other possibilities/possible explanations, but nothing else comes to mind at the moment.

Amy
_________________
"Nearly all men can stand adversity, but if you want to test a man's character, give him power." ~ Abraham Lincoln

[Anj]

Has your question been answered yet?

Anyway, my thoughts on this. I don't know much about the "Not that I know of" but I think...the "None that I know of" is used when you are asked (like...if there is something) and your reply is that you don't know anything about it, i.e. that from what you know, there is none.

As an example, when you're asked "Is there a planet other than the earth that sustains life?", I don't know what you think of that, but suppose you think there is none, you say "None that I know of." Meaning, you think it is possible that there is, but you don't know about it, and the last time that you heard about it, we haven't really learned of such (other) planet.

Same thing for the example you were discussing about (which was almost four years ago now lol), though the example wasn't as easy as mine lol. The question, "Has he received any bill yet" could be answered "None that I know of" --- if from what you know, he has not, but you are not ignoring the possibility that he might have received one. It's like saying, maybe he has received, but from what I know, there's none/I don't know anything about the bill that he has received suppose there is.

Errrr I'm hoping I make sense. IF I am right.