| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb pp] at the time | 144 |
|
| 2 | [vb pp] at the time [conj] | 66 |
|
| 3 | [adv] at the time [conj] | 36 |
|
| 4 | [adv] [vb pp] the time [conj] | 10 |
|
