| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may not [be] [prep] | 127 |
|
| 2 | not [be] appropriate [prep] | 41 |
|
| 3 | may [be] appropriate [prep] | 31 |
|
| 4 | may not [be] appropriate | 30 |
|
