| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [be] [vb pp] | 3610 |
|
| 2 | could [be] [vb pp] to | 869 |
|
| 3 | [pron] [be] [vb pp] to | 74 |
|
| 4 | [pron] could [be] to | 5 |
|
