Verb conjugation of "trionfare" in Italian

Thank you for writting back so quickly. I learned English when I was a kid, because we've always been in England during summer vacation, since my grandma used to live there when she was still alive.
The last sentence is the hardest in the entire series. Writing may bore some people, but it is considered the best training in language learning. It is a skill that can lift you from intermediate to advanced level. Do not neglect it.
I'm fine, thanks. I'm sorry that I did not write back to you sooner. As you see I am very busy with my work. But I'll take the time to help you because I promised to do so. So let us start soon.