| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [vb pp] [adj] | 239 |
|
| 2 | could [pers pn] [be] [vb pp] | 85 |
|
| 3 | could [pers pn] [be] [adj] | 62 |
|
| 4 | [pers pn] [be] [vb pp] [adj] | 23 |
|
