| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [adv] not been | 55 |
|
| 2 | has still [not/n't] been | 21 |
|
| 3 | has certainly [not/n't] been | 10 |
|
| 4 | has probably [not/n't] been | 5 |
|
