| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [be] [vb pp] in | 302 |
|
| 2 | [adv] [be] [vb pp] in [adj] | 278 |
|
| 3 | could [be] [vb pp] in [adj] | 87 |
|
| 4 | could [adv] [be] [vb pp] [adj] | 82 |
|
