| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it must [be] [adj] | 589 |
|
| 2 | [pron] must [be] some | 180 |
|
| 3 | it [vb mod] [be] some | 122 |
|
| 4 | it [modal v] [be] some | 122 |
|
| 5 | it must [be] [det] | 43 |
|
| 6 | it must [be] some | 11 |
|
| 7 | it must [be] some | 11 |
|
