>>14048395It seems that people use "Aren't" as the contraction for "Am not" because they are pronounced the same when contracted in non-rhotic dialects (A'nt)
But then it gets stupid and people who actually pronounce the "r" in "are" pronounce it "aren't". This is why it's important to spell things right even you pronounce it the same way
I think this happened because English people consider "ain't" to be incorrect English. But using "aren't" for it somehow isn't.
