| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [be] | 41654 |
|
| 2 | [modal v] [be] [noun] | 7200 |
|
| 3 | it [modal v] [noun] | 149 |
|
| 4 | it [be] [noun] | 63 |
|
