"Os números não têm mostrado isso."

Translation: The numbers have not shown it.

[Rauluri]

would the following be correct? "The numbers have not been showing that?"

[Paulenrique]

Yes, it is also right.

[lijenazmija]

Duolingo keeps confusing me about tenses. I have translated a few exercises in this section using present perfect (ie. have talked to), and all of them were marked incorrect, as the correct response would use pres. perf. continuous (have been talking to). So which english tense corresponds to the exercises in this lesson?