english challenges

Well for to be honest I never before questioned me this, which are the challenge of the English language? , for begin I want to say than nothing language is easy, but yes each one of them have his difficulty, for example I think that French is so much hard that Portuguese, but in my opinion when I meet the English I don´t remember that this were a difficult for me, on the contrary, when I began to speak English this never before I felt that exist other idiom apart from of my idiom that I can understand with this ease, but if I must to say  thing that I take into account is listen it, because write it for me personally, don´t is a difficult, and neither speak it, but listen it, in my opinion is so much hard that other point that I said, because when you speak with other person in this language is so hard understand of that he or she try to tell you, because you don´t are used to of this idiom, but with time and practice I´m sure that in the future listen it, will not a problem for you, for me the more hard in the English is learn to listen, and today even I need practice it, I can to keep a conversation with other person, but always I ask them that if they can speak more slow because I don´t manage to understand, of that she or he try to tell me, but how I said that with practice and perseverance we can do it