| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] it [modal v] be [noun] | 97 |
|
| 2 | [adv] it [vb mod] be [noun] | 97 |
|
| 3 | [adv] [pron] must be [noun] | 20 |
|
| 4 | [adv] it must [be] [noun] | 8 |
|
| 5 | [adv] it must be [noun] | 8 |
|
