| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] be the [noun] | 639 |
|
| 2 | it [vb mod] be the [noun] | 639 |
|
| 3 | it must be [art] [noun] | 206 |
|
| 4 | [pron] must be the [noun] | 159 |
|
| 5 | it must be the [noun] | 83 |
|
| 6 | it must [be] the [noun] | 83 |
|
