| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] could not [be] [vb pp] | 224 |
|
| 2 | could not [be] [vb pp] to | 90 |
|
| 3 | [conj] could [be] [vb pp] to | 66 |
|
| 4 | [conj] not [be] [vb pp] to | 10 |
|
