These days I was involved in a discussion with friends of mine who are studying Italian, and I realize that they are very confused on the use of pronouns in Italian, on the other side, they manage unexpectedly the use of verbs quite well. So I'd like to ask the friends of this site, possibly foreigners who are studying Italian, in your experience, the hardest thing to learn studying Italian is the use of: 1.verbs? 2.or pronouns? 3.or something else? Please explain the reason and list your mother tongue.
Answers from Italian users are also warmly welcome, if they have experience to share on this subject with their foreign friends.