Form, construction and strategy for learning this tense
Here’s a revised version of my introduction to the Present Perfect.
I deal with the meaning of the name. The complexity of tense added the fact that is both to similar to and rather different from the Passato Prossimo in Italian mean that it needs careful study. I think that the right strategy is to split the meaning into three distinct areas, each of which–when treated individually–is both easier to grasp and to relate to Italian.