| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if we [verb] know [Wh adv] | 6 |
|
| 2 | if we [vb base] know [Wh adv] | 5 |
|
| 3 | if we know [Wh adv] [pron] | 8 |
|
| 4 | if we know [Wh adv] [pers pn] | 6 |
|
