| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [pron] know | 1887 |
|
| 2 | [pron] know [Wh pn] | 758 |
|
| 3 | [vb past] [pron] [Wh pn] | 184 |
|
| 4 | [vb past] know [Wh pn] | 31 |
|
