| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] [adv] be [verb] | 3239 |
|
| 2 | it [modal v] [adv] be [verb] | 3239 |
|
| 3 | [pron] must [adv] be [verb] | 448 |
|
| 4 | [pers pn] must [adv] be [verb] | 367 |
|
| 5 | it must [adv] be [verb] | 219 |
|
| 6 | it must [adv] be [verb] | 219 |
|
| 7 | it must [adv] [be] [verb] | 219 |
|
| 8 | it must [adv] be [verb] | 219 |
|
| 9 | it must [adv] [be] [verb] | 219 |
|
