| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that have been [vb pp] | 2778 |
|
| 2 | have been [vb pp] a | 1070 |
|
| 3 | that have [vb pp] a | 195 |
|
| 4 | that have been a | 37 |
|
