| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [pers pn] must have | 411 |
|
| 2 | know [pers pn] [modal v] have | 245 |
|
| 3 | know [pers pn] must [verb] | 108 |
|
| 4 | know [pers pn] must [vb infin] | 108 |
|
| 5 | know [pron] must have | 17 |
|
| 6 | know [pers pn] must have | 17 |
|
