| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] it [be] [vb pp] | 323 |
|
| 2 | could [pron] [be] [vb pp] | 97 |
|
| 3 | could [pers pn] [be] [vb pp] | 85 |
|
| 4 | could it [be] [verb] | 39 |
|
| 5 | could it [be] [vb pp] | 36 |
|
| 6 | could it [be] [vb pp] | 36 |
|
