| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] at that time | 117 |
|
| 2 | [pron] [vb base] at that | 68 |
|
| 3 | [vb base] at that time | 18 |
|
| 4 | [pron] [vb base] that time | 10 |
|
