| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] [prep] [det] case | 15 |
|
| 2 | [verb] been [vb pp] [prep] [det] case | 15 |
|
| 3 | have been [vb pp] [prep] [det] case | 7 |
|
| 4 | [vb infin] been [vb pp] [prep] [det] case | 7 |
|
