11.5.2 formation of the pretérito perfeito composto
The pretérito perfeito composto is easy to form, one takes the present of the verb ter tenho, tens, tem, temos, têm and add the past participle. However the context in which it is used is very special. It focus on an aspect that is completely irrelevant in most languages. However for English native speakers it is not such a big problem, because it corresponds to the present perfect continuous (I have been working), see 11.2.