| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [pers pn] [modal v] be [noun] | 65 |
|
| 2 | [verb] [pers pn] could be [noun] | 26 |
|
| 3 | [vb past] [pron] could be [noun] | 9 |
|
| 4 | [vb past] [pers pn] could [be] [noun] | 7 |
|
