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I found this page by typing 'Split infinitives' in the Google Custom Search box near the top of the page.
Student or Learner
I've recently read that splitting infinitives is not correct or at least not desirable.
E.g. 'You must try to carefully listen'.
I used to do that a lot because I thought it sounded better when splitting the infinitive. Since I'm not sure of the reliability of the site where I have read this information, I also wanted to ask for your opinion. Is splitting the infinitive correct or not?
Your example: to listen carefully" and "to carefully listen" is one of them. There are some cases in which I think the infinitive splitting adds a more proactive meaning to the phrase, particularly with a negative adverbial. Example: "I am trying not to fail this class" versus "I am trying to not fail this class". For me the second is more proactive than the first. Others will probably disagree.