Please state in which country your phrase tends to be used, what the phrase is, and what it should be.
Example:
In America, recently came across “back-petal”, instead of back-pedal. Also, still hearing “for all intensive purposes” instead of “for all intents and purposes”.
English pronunciation is completely all over the place, so much so that you frequently cannot predict how a word is supposed to be pronounced. I usually don’t pay too much attention to pronunciation errors because of that.