| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [be] [vb pp] | 4743 |
|
| 2 | [coord] could [adv] [be] | 303 |
|
| 3 | [coord] could [be] [vb pp] | 300 |
|
| 4 | [coord] [adv] [be] [vb pp] | 292 |
|
