| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] it [modal v] [verb] [be] | 275 |
|
| 2 | [noun] it [vb mod] [verb] [be] | 275 |
|
| 3 | [noun] [pron] could [verb] [be] | 205 |
|
| 4 | [noun] it could [verb] [be] | 32 |
|
