Past Perfect Continuous By Sophia1000 Period: Mar 5, 1997 to Mar 5, 2017 She had been working as a teacher for 20 years. This is another past event that goes FURTHER BACK in the past. Please notice the word: for, which implies duration (from a past action to another past action). Mar 5, 2017 When I met her This is a past event. Apr 8, 2019 Now
