STRUCTURE OF THE PRESENT PERFECT PROGRESSIVE

AFFIRMATIVE


 SUBJECT + HAVE + BEEN+ VERB ING + COMPLEMENT

                       HAS

EXERCISES

1 - http://www.ego4u.com/en/cram-up/grammar/prepersim-preperpro/tests?test1

2 - http://www.ego4u.com/en/cram-up/grammar/prepersim-preperpro/tests?test2