| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [noun] [noun prp] | 1285 |
|
| 2 | it [modal v] [be] [noun] | 1028 |
|
| 3 | [modal v] [be] [noun] [noun prp] | 370 |
|
| 4 | it [modal v] [be] [noun prp] | 253 |
|
