| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb mod] not be [prep] | 15 |
|
| 2 | which [modal v] not be [prep] | 15 |
|
| 3 | which may not be [prep] | 6 |
|
| 4 | which may not be [prep] | 6 |
|
| 5 | which [modal v] not be in | 5 |
|
