| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have know [prep] [art] [noun] | 17 |
|
| 2 | must have know [art] [noun] | 11 |
|
| 3 | must have know [prep] [art] | 6 |
|
| 4 | must have [prep] [art] [noun] | 5 |
|
