| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] at [art] time | 65 |
|
| 2 | [not/n't] [vb pp] at [art] time | 35 |
|
| 3 | [not/n't] been [vb pp] at [art] | 25 |
|
