| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have not [verb] [prep] | 897 |
|
| 2 | not [verb] back [prep] | 393 |
|
| 3 | have [verb] back [prep] | 132 |
|
| 4 | have not [verb] back | 28 |
|
