| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have not been [vb pp] for | 209 |
|
| 2 | have not [vb pp] for year | 30 |
|
| 3 | have been [vb pp] for year | 28 |
|
| 4 | not been [vb pp] for year | 9 |
|
