| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [adv] been [verb] is | 15 |
|
| 2 | has [adv] [been] [vb pp] is | 15 |
|
| 3 | has [adv] [been] [verb] is | 10 |
|
| 4 | has [not/n't] [been] [verb] is | 5 |
|
| 5 | has not [been] [verb] is | 5 |
|
