Focusing our attention to the periphrastic constructions that express various phases of verbal action, we can distinguish three basic phases: beginning, duration and end of action, namely the phase ingressive, durative and terminative, respectively. For Portuguese Language, there are several studies devoted to this topic, I should mention here two names: Evanildo Bechara and Henrique Fernandes Barroso.
The first Brazilian, the second Portuguese, they distinguished in their studies the following verbal actions: imminent, initial, inceptive, progressive, continuative, regressive (or pre-final), conclussive (or final) and egressive. The Czech Romanist, Professor Bohumil Zavadil (Zavadil, Čermák, 2010) offers for the Spanish language a more detailed picture, which has been the basis for our work.