| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have not [been] [verb] | 4727 |
|
| 2 | have not [been] [vb pp] | 4212 |
|
| 3 | have [adv] [been] seen | 318 |
|
| 4 | have not [been] see | 144 |
|
| 5 | [verb] not [been] seen | 131 |
|
| 6 | have not [be] seen | 131 |
|
