| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | know [Wh det] [verb] | 2015 |
|
| 2 | [modal v] know [Wh det] | 354 |
|
| 3 | [modal v] know [verb] | 16 |
|
| 4 | [modal v] [Wh det] [verb] | 6 |
|
