| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [adv] [be] [noun] | 112 |
|
| 2 | [pron] could [adv] [be] [noun] | 48 |
|
| 3 | it could [adv] [be] [noun] | 32 |
|
| 4 | it could [adv] [be] [noun] | 13 |
|
