| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [not/n't] [adv] [been] | 508 |
|
| 2 | [Wh pn] has [adv] [been] | 102 |
|
| 3 | [Wh pn] has [not/n't] [been] | 81 |
|
| 4 | [Wh pn] has [not/n't] [adv] | 30 |
|
