| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have not been [vb pp] at the | 20 |
|
| 2 | have not be [vb pp] at the | 19 |
|
| 3 | had not be [vb pp] at the | 9 |
|
| 4 | has not be [vb pp] at the | 8 |
|
