| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [verb] not been | 4396 |
|
| 2 | which [pron] [verb] not | 1044 |
|
| 3 | which [pron] [verb] been | 870 |
|
| 4 | which [verb] not been | 351 |
|
