| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [prep] | 135598 |
|
| 2 | [vb pp] [to-vb] [prep] | 17262 |
|
| 3 | be [vb pp] [to-vb] | 17247 |
|
| 4 | be [to-vb] [prep] | 276 |
|
