| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] must [verb] i | 500 |
|
| 2 | [pers pn] must know [pron] | 94 |
|
| 3 | [pers pn] [modal v] know i | 33 |
|
| 4 | [pron] must know i | 8 |
|
