| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] [adv] at the | 66 |
|
| 2 | been [vb pp] at the time | 60 |
|
| 3 | [vb pp] [adv] at the time | 47 |
|
| 4 | been [adv] at the time | 8 |
|
