1 The baby _____ when his mother arrived.
2 Tina _____ watching TV.
3 _____ from California?
4 My uncle _____ here for ages!
5 They _____ before.
6 It's used to talk about actions in progress in the Past.
7 The action in Past Perfect Continuous is generally interrupted by another action in Present.
8 We generally use prepositions like "For" and "Since".
9 The main verb is always conjugated in the Participle form.
10 When she arrived, the boys _____ the bedroom.
11 I _____ when it became dark.
12 _____ they been studying before the test?
13 Susan had been _____ for hours.
14 The action in Past Perfect Continuous is generally interrupted by an action in the Past.
15 The main verb always ends with the "–ing" form.
