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”.
Well hell, I use “an” before historic, every time.
It’s fine if you drop the letter “h” when you speak - like I do. It then becomes “an ‘istoric” and sounds correct.