| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] be [prep] | 2698 |
|
| 2 | [Wh adv] [pron] [vb past] [prep] | 2591 |
|
| 3 | [Wh adv] [pron] be [prep] | 1063 |
|
| 4 | [Wh adv] [pron] [vb past] be | 634 |
|
