| PAST Perfect Continuous Tense (Simple sentences) | |||||||
| | | | | | examples | ||
| Subject | Had been | Verb+ing | For/since | Objects | He had been working for two hours. I had been working since Monday . Jack and Sam had been working for two years. | ||
| PAST Perfect Tense (negative sentences) | |||||||
| Subject | had been | not | Verb+ing | For/since | Objects | He had not been working for two hours. I had not been working since 11 o’clock. Jack and Sam had not been working for two years. | |
| Present Perfect Tense (Interrogative sentences) | |||||||
| Had | Subject | been | Verb+ing | For/since | Objects | Had he been working for two months? Had I been working since Monday? Had Jack and Sam been working for two years? | |
| Present Tense (Interrogative and negative sentences) | |||||||
| Had | Subject | Not been | Verb+ing | For/since | Objects | Had he not been working since July? Had I not been working for three hours? Had it not been working since Tuesday ? Had Jack and Sam not been working for two years? | |
