Present Perfect Continuous or Past Perfect Continuous ...
grammartop.com › present-perfect-continuous-orMar 04, 2019 · The Present Perfect Continuous is used to talk about an action that started before now (or in the past) and has continued up until now (or into the present). I ’m really tired. I have been carrying those bags for half an hour. The Past Perfect Continuous corresponds to the Present Perfect Continuous , but with reference to a time earlier than ‘before now’. As with the Present Perfect Continuous, we are more interested in the process. When it was 3:00 p.m I had been waiting for Bob for ...