Present Perfect!

Monday 3rd April 2017.

Started in the past and continues in the present. E.G I have been at boxing for two weeks.

A period that has not yet finished. E.G I have been to boxing twice this week.

Unspecified period between the past and now. E.G I have been to America once.

In very recent past. E.G I have just finished my homework.

Time is not important EG He watched Beaty and the Beast.