| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it had [adv] been a | 64 |
|
| 2 | it had not been a | 36 |
|
| 3 | it had [not/n't] been a | 36 |
|
| 4 | it had all been a | 20 |
|
| 5 | it had not been a | 20 |
|
| 6 | it had all been a | 20 |
|
| 7 | it had n't been a | 16 |
|
| 8 | it had only been a | 7 |
|
| 9 | it had only been a | 7 |
|
| 10 | it had always been a | 5 |
|
| 11 | it had always been a | 5 |
|
