40 multiple-choice questions across four sets: mixed forms (had been / hadn't been / Had … been?), duration and result, PPC vs Past Perfect, and mixed hard.
Choose the correct Past Perfect Continuous form. The set mixes affirmative (had been + -ing), negative (hadn't been + -ing), and question forms (Had … been + -ing?).
| Past Perfect Continuous | Past Perfect |
|---|---|
| Focus on duration / process | Focus on completion / result |
| had been working (ongoing) | had worked (finished) |
| She had been reading for hours. | She had read three chapters. |
| used with for / since / how long | used with already / just / never / yet |
Verbs like know, believe, understand, want, love, hate, need do not use the continuous form. Use Past Perfect instead: She had known him for years (not “had been knowing”).