| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [not/n't] [be] [verb] [conj] | 327 |
|
| 2 | it must [adv] [be] [verb] [conj] | 111 |
|
| 3 | [pron] must [not/n't] [be] [verb] [conj] | 37 |
|
| 4 | it must [not/n't] [be] [verb] [conj] | 32 |
|
