I think English is difficult because it is not our native language's language, but it can be a good practice both speaking, listening, reading, writing, friendly staff.
I think the difficult English Because my English is not our mother tongue. But can be trained to excel in both size and in speaking, listening, reading, writing.
I think English is difficult because it wasn't his father our mother tongue. But can be trained to better at both of speaking, listening, reading and writing.