| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which may not be [prep] | 6 |
|
| 2 | which may not [be] [prep] | 6 |
|
| 3 | which may not be [prep] | 6 |
|
| 4 | which may not [be] [prep] | 6 |
|
