| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it had [not/n't] been | 518 |
|
| 2 | had [not/n't] been for | 185 |
|
| 3 | it [not/n't] been for | 136 |
|
| 4 | it had been for | 40 |
|
