| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [be] [vb pp] to [be] | 149 |
|
| 2 | [det] could [be] [vb pp] to | 25 |
|
| 3 | [det] could [be] [vb pp] [be] | 19 |
|
| 4 | [det] [be] [vb pp] to [be] | 8 |
|
