| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not been [verb] [prep] [adj] | 432 |
|
| 2 | to have been [verb] [prep] [adj] | 274 |
|
| 3 | not to have been [verb] [prep] | 25 |
|
| 4 | not to have [verb] [prep] [adj] | 7 |
|
