| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] at the time [prep] | 150 |
|
| 2 | [vb base] at the time [prep] | 15 |
|
| 3 | [conj] [vb base] at the time | 14 |
|
| 4 | [conj] [vb base] the time [prep] | 11 |
|
