| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] not be [prep] vain | 5 |
|
| 2 | have not be [prep] vain | 5 |
|
| 3 | [modal v] not be [prep] vain | 5 |
|
| 4 | [vb mod] not be [prep] vain | 5 |
|
