| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb mod] not be [vb pp] to | 30 |
|
| 2 | which can [not/n't] be [vb pp] to | 18 |
|
| 3 | which [vb mod] [not/n't] be reduced to | 8 |
|
| 4 | which could [not/n't] be [vb pp] to | 6 |
|
