| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] it [vb mod] | 992 |
|
| 2 | [prep] it [modal v] | 992 |
|
| 3 | [prep] [pron] must | 435 |
|
| 4 | [prep] [pers pn] must | 231 |
|
| 5 | [prep] it must | 52 |
|
| 6 | [prep] it must | 52 |
|
| 7 | [prep] it must | 52 |
|
