| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [noun] | 16246 |
|
| 2 | [be] [noun] [modal v] | 267 |
|
| 3 | it [be] [modal v] | 57 |
|
| 4 | it [noun] [modal v] | 36 |
|
