perfect, we use the present perfect for an
indefinite time in the past, and its formed with the
verb have + the past participle of a verb.

In my life, I've done lots of things.... I have practiced all kind sports, baseball, basketball, tennis, softball, but I've never played soccer, i dont like it. I have had in USA, I lived for 4 year in Miami with my family and I've been in a Hurrican :O, it was one of the most Frightening experience of my life.
Thing I haven't done.... I haven't ridden a horse. I haven't had a job :P , I've never cleaned my room, I have never failed a english level (y) I've never been injured..
Thing I haven't done.... I haven't ridden a horse. I haven't had a job :P , I've never cleaned my room, I have never failed a english level (y) I've never been injured..