| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] be [pers pn] know | 9 |
|
| 2 | it [modal v] be [pron] know | 9 |
|
| 3 | it [vb mod] be [pron] know | 9 |
|
| 4 | it [modal v] be [pron] know | 9 |
|
