Recently one of my friends told me that there is distinct difference between 'know of something' and 'know about something' expressions. 'know of' is used when you have personal …

Dec 7, 2019 · Earth is the only planet we know of where life exists. This sentence is from the commentary of Planet Earth. Why it is know of in this sentence? Can it be know about？ …

To know something is more long-term, perhaps after having realized it. The first definition for know is: to perceive or understand as fact or truth; to apprehend clearly and with certainty …

Jul 18, 2017 · My business partner, who is a Native English speaker, used "know on" in the email. The sentence is: Now they has found out the reason why they kept asking for the delay, it …

Mar 28, 2011 · Thus, "As far as I know, Bob is happy" over "Bob is happy, so far as I know". They are equivalent in meaning therefore, but choice of one over another betrays, for me, certain …

May 26, 2019 · It's not just you that doesn't know. Now, according to owl.purdue.edu, we should use "doesn't" when the subject is singular (except when the subject is "you" or "I"), and "don't" …

Feb 25, 2012 · What is the correct usage of phrase "you don't know what you don't know"? Can it be used in formal conversation/writing?

Oct 14, 2011 · But there are also unknown unknowns – the ones we don't know we don't know. "Known unknown" implies there are things we know we don't know, while "unknown known" …

Sep 25, 2010 · Have you ever had a case where you felt compelled to include strange things like a double that in a sentence? If so, then what did you do to resolve this? For me, I never knew …

Feb 28, 2016 · Can you tell which of the following sentences are right? And explain why the others are wrong? No one knows the answer. No one know the answer. There is nobody …