| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [not/n't] been seen | 58 |
|
| 2 | [not/n't] been seen for | 17 |
|
| 3 | has [not/n't] been for | 9 |
|
| 4 | has [not/n't] seen for | 6 |
|
