| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be [prep] | 4611 |
|
| 2 | be work [prep] | 3259 |
|
| 3 | [vb past] work [prep] | 1083 |
|
| 4 | [vb past] be work | 306 |
|
