| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] at that time | 156 |
|
| 2 | [pron] at that time | 117 |
|
| 3 | [pron] [adv] at that | 21 |
|
| 4 | [pron] [adv] that time | 8 |
|
| 5 | [pron] [adv] at time | 8 |
|
