| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] n't be | 755 |
|
| 2 | [vb -s] n't [been] | 751 |
|
| 3 | [vb -s] n't been | 751 |
|
| 4 | has n't [be] | 750 |
|
