| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] could [be] [vb pp] to | 25 |
|
| 2 | [det] could be [vb pp] to | 25 |
|
| 3 | this could [be] [vb pp] to | 11 |
|
| 4 | these could [be] [vb pp] to | 5 |
|
