| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [vb pp] | 15275 |
|
| 2 | [pers pn] could [be] | 6001 |
|
| 3 | [pers pn] [be] [vb pp] | 1043 |
|
| 4 | [pers pn] could [vb pp] | 11 |
|
