| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] be [prep] | 118 |
|
| 2 | which [vb past] [prep] force | 66 |
|
| 3 | [vb past] be [prep] force | 15 |
|
| 4 | which be [prep] force | 5 |
|
