| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] [adv] [subord] [verb] | 396 |
|
| 2 | could [be] [vb pp] [subord] [verb] | 101 |
|
| 3 | could [be] [vb pp] [adv] [subord] | 70 |
|
| 4 | could [be] [vb pp] [adv] [verb] | 41 |
|
