| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] [prep] | 477814 |
|
| 2 | be [vb pp] [prep] | 477791 |
|
| 3 | been [verb] [prep] | 65865 |
|
| 4 | [been] [vb pp] [prep] | 58901 |
|
