I bought this (off)(of)(from) my neighbour

Mnemon

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▶ USAGE
The use of off after buy as in I bought this off my neighbour was formerly considered incorrect, but is now acceptable in informal contexts
Collins English Dictionary. Copyright © HarperCollins Publishers

a- I bought this off my neighbour.
b- I bought this off of my neighbour.
c- I bought this from my neighbour.

Are they all correct?
 

emsr2d2

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BrE frequently uses "off" there, as well as "from". Please don't use "off of". It's a really annoying habit that some native speakers have and it drives many of us insane!
 

probus

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Notwithstanding emsr2d2's understandable aversion, a descriptivist would accept "off of" as valid because it is used (at least in AmE) and has been for a long time. If I heard it, however, I'd assume the speaker was uneducated.
 

Skrej

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"Off of" is commonly used in my area, to the point it might even be the preferred form. I can't say for sure, but it is widely used and extremely common. I use it as well.

But then maybe we're all just uneducated.
 
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