| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have not [vb pp] [adv] | 2802 |
|
| 2 | have not [vb pp] [adv prt] | 961 |
|
| 3 | have [adv] [vb pp] back | 295 |
|
| 4 | [verb] not [vb pp] back | 91 |
|
| 5 | have not [verb] back | 90 |
|
| 6 | have not [vb pp] back | 88 |
|
