| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has not been [verb] for | 60 |
|
| 2 | has not been [vb pp] for | 57 |
|
| 3 | has not been seen [prep] | 27 |
|
| 4 | has not been seen [prep] | 27 |
|
| 5 | [verb] not been seen for | 17 |
|
| 6 | have not been seen for | 17 |
|
| 7 | has not been seen for | 5 |
|
| 8 | has not [been] seen for | 5 |
|
| 9 | has not [be] seen for | 5 |
|
| 10 | has [adv] been seen for | 5 |
|
| 11 | has not be seen for | 5 |
|
| 12 | [vb -s] not been seen for | 5 |
|
| 13 | has not been see for | 5 |
|
