| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] to be [prep] | 1079 |
|
| 2 | [vb past] be work [prep] | 187 |
|
| 3 | to be work [prep] | 145 |
|
| 4 | [vb past] to be work | 46 |
|
