| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] it [verb] | 1151 |
|
| 2 | [modal v] know [pron] [verb] | 160 |
|
| 3 | [modal v] know [pers pn] [verb] | 58 |
|
| 4 | [modal v] know it [verb] | 8 |
|
