| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [adv] know | 1690 |
|
| 2 | [adv] know for | 533 |
|
| 3 | [modal v] [adv] for | 118 |
|
| 4 | [modal v] know for | 20 |
|
