| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] be [prep] | 2698 |
|
| 2 | [Wh pn] [verb] be [prep] | 684 |
|
| 3 | [Wh pn] [vb past] be [prep] | 373 |
|
| 4 | [Wh pn] [vb past] [be] [prep] | 373 |
|
