commonly confused

• mistakenIncorrectly understood or believed
• mixed-upDisordered or bewildered
• muddledIn a confused state
• swappedExchanged mutually
• similarResembling another thing

lookalike · tricky · perplexing · baffling · grammar · spelling · homophone · affect · effect · their · there · its · it's · your · you're · then · than · misused