| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [to-vb] [prep] | 16482 |
|
| 2 | [vb past] been [prep] | 4108 |
|
| 3 | [vb past] [to-vb] been | 482 |
|
| 4 | [to-vb] been [prep] | 289 |
|
