| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] this at the time | 14 |
|
| 2 | [prep] this at the time | 14 |
|
| 3 | [prep] this at the time | 14 |
|
| 4 | of this at the time | 7 |
|
| 5 | of this at the time | 7 |
|
