| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if [pron] [vb past] [pron] | 3490 |
|
| 2 | [pron] [vb past] [Wh adv] [pron] | 936 |
|
| 3 | if [pron] [vb past] [Wh adv] | 81 |
|
