| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may not [be] [prep] | 127 |
|
| 2 | not [be] know [prep] | 51 |
|
| 3 | may not [be] know | 16 |
|
| 4 | may [be] know [prep] | 11 |
|
