| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] had be | 3096 |
|
| 2 | had be at | 382 |
|
| 3 | [Wh pn] be at | 352 |
|
| 4 | [Wh pn] had at | 23 |
|
