| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] been [vb pp] [prep] [det] | 1061 |
|
| 2 | [vb -s] to have been [vb pp] [prep] | 239 |
|
| 3 | to have been [vb pp] [prep] [det] | 88 |
|
| 4 | [vb -s] to have [vb pp] [prep] [det] | 26 |
|
