| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] [prep] | 49363 |
|
| 2 | have not been [vb pp] | 4212 |
|
| 3 | have not [vb pp] [prep] | 3067 |
|
| 4 | not been [vb pp] [prep] | 1651 |
|
| 5 | have not been [prep] | 806 |
|
