| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have [not/n't] been [vb pp] for | 14 |
|
| 2 | it have not been [vb pp] for | 10 |
|
| 3 | it had [not/n't] been [vb pp] for | 7 |
|
| 4 | it has [not/n't] been [vb pp] for | 6 |
|
