| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] it [modal v] be | 926 |
|
| 2 | [pron] [pron] must be | 137 |
|
| 3 | [pron] [pers pn] must be | 102 |
|
| 4 | [pron] it must be | 47 |
|
| 5 | [pron] it must [be] | 47 |
|
