I tried to translate this phrase literally and came up with "(My) ears can't
hear". Since the expression means "(I'm) deaf", this makes sense.  
However, I can't really get it to work grammatically, seeing as が isn't
normally used to denote the subject in sentences with a "potential"-form.  
So how can が be grammatically explained in this expression?  
Thanks for reading through my question.
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2019-03-15T21:55:37.573
66029
2019-03-15T21:55:37.573
33212
question
particles expressions particle-が phrases potential-form
が in the expression "耳が聞こえない"