| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] know [prep] | 465 |
|
| 2 | [pers pn] must know | 368 |
|
| 3 | [pers pn] must [prep] | 347 |
|
| 4 | must know [prep] | 26 |
|
