| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we [verb] know [Wh adv] | 49 |
|
| 2 | if we [verb] know | 30 |
|
| 3 | if we [verb] [Wh adv] | 30 |
|
| 4 | if we know [Wh adv] | 17 |
|
