| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] [vb pp] at the | 541 |
|
| 2 | be [vb pp] at the time | 297 |
|
| 3 | [adv] [vb pp] at the time | 109 |
|
| 4 | be [adv] at the time | 40 |
|
