| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [vb pp] [adj] | 353 |
|
| 2 | could also [be] [vb pp] | 278 |
|
| 3 | also [be] [vb pp] [adj] | 52 |
|
| 4 | could also [be] [adj] | 52 |
|
