| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [adv] [be] [vb pp] | 399 |
|
| 2 | could [adv] [be] [vb pp] [adj] | 82 |
|
| 3 | could [adv] [be] [vb pp] [adj] | 43 |
|
| 4 | could [adv] [adv] [be] [adj] | 40 |
|
| 5 | [adv] [adv] [be] [vb pp] [adj] | 33 |
|
