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When does one use based off, and when do you use based on? Would I say "based off the evidence in this experiment" or "based on the evidence in this experiment?"
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Hi,

When does one use based off, and when do you use based on? Would I say "based off the evidence in this experiment" or "based on the evidence in this experiment?"

I don't remember hearing anyone say 'based off' like this. It's not a standard expression.

Say 'based on'.

Clive
Comments  
Students: We have free audio pronunciation exercises.
It should always be "based on." "Based off" is a new trend that is grammatically and logically incorrect!
Just listen to "based off" on TV