| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] [vb past] [pron] [verb] | 923 |
|
| 2 | [vb past] if [pron] [verb] | 713 |
|
| 3 | [Wh pn] [vb past] if [pron] | 18 |
|
| 4 | [Wh pn] if [pron] [verb] | 8 |
|
