| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | know [adv] [subord] [to-vb] | 98 |
|
| 2 | [modal v] know [adv] [to-vb] | 86 |
|
| 3 | [modal v] know [adv] [subord] | 35 |
|
