矫枉过正；改正过头the use of a wrong form or pronunciation of a word by sb who is trying to show that they can use language correctly. For example, the use of instead of in the sentence ‘They invited my husband and I to dinner’.
n.
1.
agrammaticalmistakeormispronunciationmadebycorrectingsomethingthatisnotactuallywrong, e.g. saying "betweenyouandI" insteadof "betweenyouandme"